The answer is 1.5 ounces.
Although the U.S. government has never declared an official measurement for this most states and bars use this amount for shots. Shots are used as part of happy hour drinks or in popular cocktail recipes. can be provided separately. Pubs and bars typically serve spirits in 25ml increments. This is roughly 1 unit of alcohol per unit.
But with many pubs and bars switching to 35ml or 50ml units these days, you may be drinking a lot of alcohol without realizing it. A portion is a measured amount of food or drink. B. A piece of bread or 1 cup of milk. Many foods presented as single servings actually contain multiple servings.
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What is the Marxist criticism?.
The definition of Marxist criticism is an approach to analyzing political and social issues in terms of conflicts between people from various socioeconomic strata.
Which five socioeconomic groups fall into each?Gallup has been asking Americans to categorize themselves into the upper, upper-middle, middle, working, and lower social classes for a number of years. These five class names serve as a good example of the basic methodology employed by both researchers and the general public.
What does the term "socioeconomic class" mean?a technique to categorize people according to their employment status, income level, and level of education. Low, medium, or high are typical classifications for socioeconomic level. When compared to people with greater socioeconomic level, those with lower socioeconomic status typically have fewer access to financial, educational, social, or health resources.
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if he loses half this energy by evaporating water (through breathing and sweating), how many kilograms of water evaporate? the latent heat of vaporization of water is lv
2.59 kilograms of water evaporate, if latent heat is lv.
Q = m lv = 3000 kCal / 2
m = 3000 / 2 lv
lv = 580 kCal /kg
m = 2.59 kg
Hence, 2.59 kilograms of water evaporate, if latent heat is lv.
The heat energy that has to be supplied to change the state of a substance without changing the temperature of the substance is called its latent heat.
Latent heat is the power launched or absorbed by means of a body whilst changing it nation with out upward thrust or fall in temperature . including greater warmness to the water has no impact on temperature. as a substitute, it causes the water to trade nation (or vaporize) from a liquid to a gasoline.
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differentiate among the types of clinical manifestations and collaborative treatment plan for diabetes mellitus (dm). for each topic associated with dm, drag and drop the statements that apply to the topic to the box.
More prevalent in youngsters - Caused by such an autoimmune mechanism - A known consequence is diabetic ketoacidosis (DKA), which is treated with prescribed insulin.
Justification: Type 1 DM is often brought caused by an autoimmune mechanism in which the pancreatic' insulin-producing beta cells were destroyed, leaving the body completely devoid of insulin. A complete lack of insulin typically results from this procedure within one year. As a result, lifelong insulin delivery through injection or pump is required. Children are more prone to Type 1 DM.
DKA is a recognised complication of type 1 DM. Diabetes mellitus as well as oral hypoglycemic medications are used to treat type 2 diabetes.
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select all of the reagent(s) that will efficiently convert but-1-yne into hex-3-yne in a two-step synthesis. you must select at least one step 1 reagent and one step 2 reagent, but you should select all correct answers.
The reagent that will efficiently convert but-1-yne into hex-3-yne NaNH2, and CH3CH2I
The preparations of alkynes are very similar to those of the alkenes. The main preparative reactions generally involve the elimination of groups or ions from the molecules, resulting in the formation of the π bonds.
Dehydrohalogenation is the loss of a hydrogen atom and a halogen atom from the adjacent alkane carbon atoms that leads to the formation of an alkene. The loss of additional hydrogen and halogen atoms from the double‐bonded carbon atoms leads to alkyne formation. The halogen atoms can be located on the same carbon that is called a geminal dihalide or on adjacent carbons that is a vicinal dihalide.
Butyne is a terminal alkyne. It has acidic hydrogen which can be removed by using a strong base to convert butyne into butynide.
The reagents which can be used to remove the acidic hydrogen from butyne are NaH or NaNH2.
Butynide will then react with ethylhalide to form hexyne.
The reagents which can be used for ethylation of butynide are;
CH3CH2I or CH3CH2Cl.
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0.14 m hydrofluoric acid 0.16 m potassium fluoride 0.25 m hydroiodic acid 0.16 m potassium iodide 0.30 m ammonia 0.36 m potassium hydroxide 0.15 m calcium hydroxide 0.28 m calcium bromide 0.33 m sodium perchlorate 0.23 m barium perchlorate submit answerretry entire group
We are given buffer systems and asked for good buffer systems. We know the buffer solution is the solution that resists the sudden change in the pH of the solution after the addition of a small amount of either strong acid or base.
The buffer solution contains either a weak acid and its conjugate base or a weak base and its conjugate acid. In the first part, there is a good buffer system of 0.34 M ammonia + 0.31 M ammonium nitrate and 0.14 M nitrous acid + 0.10 M potassium nitrite. In this buffer solution, there is weak acid/weak base and conjugate base/ conjugate acid present.
Irritating to eyes skin and respiratory tract. A nuisance-causing concentration of airborne particles can be reached quickly when dispersed. Repeated or prolonged skin contact may cause dermatitis. Ingestion may cause effects on the central nervous system.
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Ammonium chloride has often been used to make cold packs because of its relative low cost. To make an effective cold pack, 21. 0 g of ammonium chloride is required. What's the cost associated with making one cold pack?
The cost associated with making one cold pack is $1.323.
What is the best chemical for a cold pack?Heat is either emitted in an exothermic process or absorbed in an endothermic reaction when the salt dissociates. Commercial quick cold packs often contain either ammonium nitrate or urea as a salt component, whereas hot packs frequently contain magnesium sulfate or calcium chloride.These ice packs' chemical reactors are commonly ammonium nitrate, calcium ammonium nitrate, or urea. Ammonium nitrate is the most dangerous component if consumed. Blood arteries can dilate when exposed to ammonium nitrate. This can affect blood pressure and the volume of blood going to organs.From the table :
Ammonium chloride cost = $ 63 per Kg
To make an effective cold pack, 21. 0 g of ammonium chloride is required.
So,
cost for 21g ammonium chloride =0.021 x 63 = $ 1.323.
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What do you expect to see in a test tube when several drops of two aqueous solutions are mixed, and an insoluble precipitate is formed?.
An insoluble cloudy precipitate is formed when several drops of two aqueous solutions are mixed.
What is a precipitation reaction?
When the solution of two ionic compounds is mixed, the ions in the mixture form an insoluble substance.
This makes the solution cloudy, and the phenomenon is termed precipitation.
Double displacement reaction:
It is the reaction between two aqueous ionic compounds. The exchange of ions between these compound form new compounds.
One of the resulting compounds will be insoluble in water and form a precipitate.
The precipitate formed has lower solubility, forms particles of solid in the test tube, and the mixture appears as cloudy.
The double displacement reaction can be represented by the following formula:
AB + CD → AD + CB
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Why does lithium form a 1 ion?.
When the electrons are filled in the electron shells in lithium it's 2,1 it forms a +1 charge because it needs to loose one electron inorder to gain stable elctronic configuration
What is lithium ?Chemical element lithium has the symbol Li and atomic number 3. A soft, silvery-white alkali metal, it is. It is the least dense solid element and the least dense metal under typical conditions.
3 protons and 3 electrons make up an atom of lithium. It is capable of losing an electron, turning it into an ion. Now that it has more positive protons than negative ones, it is positively charged overall. Consequently, it is a positive ion.Compared to most of the other Periodic Table elements, lithium has a larger atomic radius. Lithium has a positive charge when in compounds.Learn more about Lithium here:
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what corrosion control chemical may cause lead leaching in stagnant waters?lime,sodium carbonate,sodium zinc phosphate or sodium bicarbonate
Corrosion is a chemical reaction. In water pipes or the stagnant water, corrosion is a chemical reaction between the water and the lead-containing plumbing fixtures.
This Corrosion of water is not safe for the health of the humans.
Corrosion causes major health issues due to the presence of lead in the water.
This happens by many ways. There are many factors like the acidity of the water, the other chemical absorbance, etc that makes the water contaminated with lead which further leads to severe health issues.
It is noticed that the lead is usually found in the water having low pH.
The low pH indicates the level of acidity in the water.
Therefore, the acidity caused by sodium zinc phosphate and other Corrosion control causes lead leaching in the stagnant water.
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for this lab you will be using 3 color ph indicators: bromothymol blue, methyl orange, and turmeric with pka values of 7.0, 3.4, and 7.8, respectively. assume you have three beakers, each containing one of the color indicators, to which you add equal aliquots of sodium hydroxide. as the ph of the three solutions increases, predict the order in which the indicators would undergo their characteristic color change, i.e., most acidic to most basic.
The order in which the indicators would undergo their characterisitic color change is -methyl orange, bromothymol blue, turmeric.
The concept behind the order is that the if the solution has lower pka value, then the solution is more acidic.
Here, we can see that in beaker 2 methyl orange indicator is used, so because of lower pka value of methyl orange, this beaker solution would undergo color changes firstly.
After this, beaker 1 in which bromothymol blue indicator is used would undergo color change.
At the end, beaker 3 in which turmeric is used as an indicator would undergo color because of higher pka value.
Hence, the correct order is methyl orange, bromothymol blue, turmeric.
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Why are some fats such as oil liquid and other fats such as butter are solid what makes a fat liquid at room temperature?.
Double bonds found in unsaturated fats form structures that stop tightly bound formations.
The arrangement of the phospholipids in the bilayer cell membrane depends on features of the phospholipid head and tails.
What are saturated and unsaturated fatty acids?
Unsaturated fatty acids have at least one double bond in the fatty acid chain while saturated fatty acids have no double bonds between the individual carbon atoms. Unsaturated fats are typically liquid and come from plant sources, whereas saturated fats are typically solid at room temperature
Animal fats, palm oil, and other sources of saturated fats are available. Plant and vegetable oils are sources of unsaturated fatty acids and consuming healthy fats instead of saturated fat can also aid in preventing insulin resistance, a condition that precedes diabetes. Since unsaturated fatty acids continues to be the healthiest type of fat, saturated fat may not be as bad as previously believed.
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What are the three factors that must be considered when using a chemical sanitizer?.
The three factors that must be considered when using a chemical sanitizer are temperature, concentration and time.
The three most common types of chemical sanitizers are chlorine, quat and iodine. For each type of chemical sanitizer, there is a minimum concentration of the sanitizer that must be present to effectively kill germs. While using the sanitizer we should keep some things in mind .we should keep in mind the concentration, concentration and time. we should use sanitizer at right temperature. we should mix the sanitizer at the correct concentration. If the concentration of the sanitizer is incorrect, it could be ineffective or even dangerous to use. Always follow the manufacturer’s instructions when preparing your sanitizing solution. we should give the sanitizer proper time to settle down. If a sanitizer is not prepared and used with water of the correct temperature, the effectiveness of the sanitizer may be decreased. For a sanitizer to be effective, it must be in contact with the item you are cleaning for the recommended amount of time. Follow the manufacturer’s instructions for your sanitizer. The ideal temperature depends on your type of sanitizer.
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determine the oxidation numbers of each of the elements in the following reactions and identify which of them are oxidized and reduced, if any: b) 2mnco3(s) o2(g) -> 2mno2(s) 2co2(g)
The oxidation numbers of each of the elements in the following reactions and identify which of them are oxidized and reduced is manganese is oxidized and oxygen is reduced.
The reaction is given as :
`2MnCO₃ + O₂ -----> 2MnO₂ + 2CO₂
in reactant side oxidation number of Mn = +2, C = +4 , O = -2
in reactant side oxidation number of O in O₂ = 0
in product side oxidation number of Mn = + 4 , O = -2
in product side oxidation number in CO₂ , C = +4 , O = -2
so the increase in oxidation number is oxidation and the decrease in oxidation number is reduction.
Thus, The oxidation numbers of each of the elements in the following reactions and identify which of them are oxidized and reduced is manganese is oxidized and oxygen is reduced.
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Silica is a chemical compound __________________ a. that combines carbon and sand to create glass. b. most commonly found in sand or quartz. c. which permits light to pass through. d. colored using metallic salts. please select the best answer from the choices provided a b c d
Silica is a chemical compound that is most commonly found in sand or quartz.
Although it can also be found in a variety of living things, silica is primarily found in sand and quartz. In reality, silica is a substance called silicon dioxide. A typical mineral found in the crust of the planet is crystalline silica. Additionally, it is employed in the production of artificial stone, pottery, glass, and ceramics.
Heavy metals, poisons, and waste products are all effectively eliminated from the body by silica. Because of this, silica is a fantastic complement to any detox regimen for providing a thorough cell cleaning. Make sure to choose wholesome food sources to get the most digestive system benefits from silica.
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a student mixed a soil sample with water, covered the container, and then shook it vigorously. finally, the sample was allowed to settle into three layers. the height of the sand layer was 1.5 cm 1.5 cm, the height of the clay layer was 0.9 cm 0.9 cm, and the height of the silt layer was 0.6 cm 0.6 cm.
A student combined a soil sample with water, capped the container, and then forcefully shook it to determine the percent change in mass of the soil sample.
What do mass and an example mean?The amount of matter that makes up every item or body is the greatest way to understand mass. Everything that we can see has mass. Tables, chairs, beds, footballs, glasses, and even the air are examples of items with mass.
What in chemistry is a mass?An object's or a substance's mass is a measurement of how much matter there is in it. Smaller masses can be measured in grams, but the kilogram (kg) is the standard SI unit for mass (g).
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How do valence electrons affect atoms and where are these located?.
The Valence electrons are the electrons located at the outermost shell of an atom.
This is because when two atoms interact the outermost electrons touch each other first and determine how the atoms react in a chemical reaction. Valence electrons are in the outermost occupied shell of the atom. They are important because they play a major role in determining the chemical properties of atoms.
Depending on the number of valence electrons in an atom the atom can become unreactive or highly reactive. For reactive atoms, the number of valence electrons determines whether they are likely to lose or gain electrons in chemical reactions. Metals that readily donate electrons can conduct electricity.
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how many moles of lead(ii) chloride will precipitate when 1mol of potassium chloride is allowed to react with an excess of lead(ii) nitrate?
From the balanced equation, We know that
one mole of Lead(II) nitrate requires two mole of potassium chloride to produce one mole of lead(II) chloride and mole of potassium nitrate.
From stochiometric calculations,
When 1mol of potassium chloride is allowed to react with an excess of lead(ii) nitrate, hence KI is limiting reagent.
So, from every one mole of potassium chloride, 0.5 mole of lead(II) chloride can be produced.
We can define, Stoichiometry as the calculation of products and reactants in a chemical reaction. It is concerned with the numbers of moles of reactant and product.
Stoichiometry is an important concept in chemistry, We use balanced chemical equations to calculate amounts of reactants and products in a reaction.
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automobile bodies contain significant amounts of iron. the iron is protected by the addition of zinc. this is called galvanization, the protection of one metal the sacrifice of a more reactive metal. write the balanced chemical equations using smallest whole number coefficients for the following processes. do not include states-of-matter:
the balanced chemical of the corrosion presented by galvanization is
Fe ⇒ Fe²⁺+ 2e
Corrosion is the process by which metals are converted to oxides by exposure to the atmosphere. Corrosion is a type of atmospheric oxidation of metals.
One way to prevent corrosion is to use a sacrificial anode. A more reactive metal can be used as the anode to protect the desired metal from corrosion. The formula for iron corrosion is: Fe ⇒ Fe²⁺+ 2e
Iron is protected by the addition of zinc. This is called electroplating( galvanization), and it protect one metal at the expense of a more reactive metal.
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Thorium-231 has a half-life of 25.5 hours. If a 100.0 g sample of thorium-231 is left for 102 hours, how much of the sample will remain?
According to the concept of half-life, 6.25 g of thorium -231 is left after 102 hours.
What is half-life?Half -life of a substance is defined as the time which is required for half of the quantity of a radioactive substance to get decayed.It is a term which is used in nuclear chemistry for describing how quickly unstable atoms undergo radioactive decay into other nuclear species by emitting particles or the time which is required for number of disintegrations per second of radioactive material to decrease by one half of its initial value.
For thorium -231 one half life=25.5 hours ,so,102 hours =102/25.5=4 half lives.
After 1 half life 100 g is left , so after 4 half lives,that is, 1/2×1/2×1/2×1/2×100=6.25 g.
Thus, after 102 hours 6.25 g is left.
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he statements in the tables below are about two different chemical equilibria. the symbols have their usual meaning, for example stands for the standard gibbs free energy of reaction and stands for the equilibrium constant. in each table, there is one statement that is false because it contradicts the other three statements. when you find a false statement, check the box next to it. statement false? statement false?
[tex]\Delta[/tex]G = 0 when a system is in equilibrium. [tex]\Delta[/tex]G<0 if the process is spontaneous.
Why is it called Gibbs free energy?Gibb's free energy is named free energy because it is readily available at all times. If necessary, the reaction can obtain this energy without having to do any effort. The change in Gibb's free energy is the sum of enthalpy and the product of the system's temperature and entropy.The standard change in free energy, or the change in free energy under standard conditions, is denoted as delta-G zero. R represents the gas constant, T represents the temperature in Kelvin, and K represents our equilibrium constant. So, if you use this equation, you're in equilibrium, and delta-G equals zero.The equation for the relationship between Gibbs energy and the equilibrium constant is [tex]\Delta[/tex]Go=RTlnKeq.[tex]\Delta[/tex]G = 0 when a system is in equilibrium. [tex]\Delta[/tex]G<0 if the process is spontaneous.To learn more about Gibbs free energy refer,
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list the four different sublevels and (given that only a maximum of two electrons can occupy an orbital) determine the maximum number of electrons that can exist in each sublevel.
l = 0 → s = 2 electrons, l = 1 → p = 6 electrons, l = 2 → d = 10 electrons, l= 3 → f = 14 electrons.
What is electron?The smallest elemental component of an atom, the electron has a negative charge. The smallest elemental component of an atom, the electron has a negative charge. In a negative ion, there are an adequate amounts of both electrons and protons.
Briefing:According to the subatomic particles, the orbit region of space has a higher likelihood of harboring an electron. It is impossible to simultaneously detect the electron's location and velocity (uncertainty principle). Therefore, the theory establishes five electron density to represent one electron, making it simple to recognize it:
→n is the principal quantum number and identify the shell where the electron is.It ranges from 1 to 7, and the consonants K, L, m actually, N, O, P, etc Q stand in for it;
→l is the azimuthal quantum number and identify the subshell (or sublevel) where the electron is. The consonants s, p, d, or f stand in for it, which ranges from 0 to 3;
→ml is the magnetic quantum number, and it represents the orbital. It varies from -l to +l, passing by 0. There can be at least two electrons in each orbital;
→ms is the spin number and represents the spin of the electrons. The range is +1/2 to -1/2.
The sublevel s (l = 0) only has one orbital, enabling it to have at least two electrons; the subarea p (l = 1) has three orbitals, so it can and has at least six electrons; the subarea d (l = 2) has five orbitals, so it can would have had at least ten electrons; and the basement level f (l = 3) has seven orbitals, enabling it to have at least fourteen electrons.
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1.what mass of oxygen gas,o2, from the air is consumed in the combustion of 702g of octane, c8h18, one of the principal components of gasoline? 2c8h18 25o2 -
1228 gram of oxygen gas is required to complete the combustion of 702g of C8H18 .
This involves the combustion reaction. A combustion reaction is a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat. The given reaction is the combustion of gasoline which is a hydrocarbon. On combustion hydrocarbons produce carbon dioxide and water.
C8H18 + 12.5 O2 -----> 8 CO2 + 9 H2O
From the balanced equation it is clear that 1mole of require 12.5 moles of oxygen for complete combustion.
Molar mass of = 114.23 g/mol
number of moles = given mass / molar mass .
Substitute 702 g for given mass and 114.23 g/mol for molar mass.
Hence 702 g of C8H18 have 6.14 moles of C8H181 .
1mole of C8H18 require 12.5 moles of oxygen for complete conversion.
then we have to Calculate the number of moles of oxygen required for the complete combustion of 6.14 moles of C8H18 .
Number of moles of oxygen required ,
( 12.5 * 6.14 ) = 76.65 moles
Therefore, 76.75 moles of oxygen is required for the complete combustion of 702 g of C8H18.
Now Convert 76.75 moles of oxygen into mass.
mass = number of moles / molar mass .
= 76.65 moles / 16 gram/mole
= 1228 g
Substituting 76.75 moles for number of moles and 16 g/mole for molar mass of oxygen we get 1228 g of oxygen .
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Why do wet clothes take longer to dry on a humid day?.
On a humid day the air is full of water vapour. Hence, evaporation is very slow. This is the reason why wet clothes take longer time on a humid day.
What is the affect of humidity on evaporation ?On a humid day, wet clothes take longer to dry because the air has a lot of water vapour and can't hold the water vapour the wet garments produce.
The term "humidity" refers to the quantity of water molecules in the atmosphere. A wet object dries more slowly the more humid the air is around it. Going back to our wet clothing that we have hung up to dry, they will dry faster in a room with dry air than they will in a room with humid air.Learn more about Evaporation here:
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select all the names that are correct for an ionic compound:-aluminum trichloride-calcium iodine-magnesium bromide-sodium oxide
Magnesium bromide and Sodium oxide are the names that are correct to ionic compounds.
What are ionic compounds?Ionic compounds are made up of ions, which form charged particles when an atom (or group of atoms) gains or loses electrons. A cation is a positively charged ion, and the an anion is negatively charged ion.Ionic bonding occurs in compounds that involve a metal binding with either a nonmetal or a semimetal. Compounds containing only nonmetals or semimetals with nonmetals exhibit covalent bonding and are classified as molecular compounds.Ionic compounds are typically formed between metals and nonmetals.At room temperature, ionic compounds are typically solids. When more than one molecule is present, they form a crystal lattice structure.To learn more about ionic compound refer to :
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What happens if you drop a lithium battery?.
In some situations, a ruptured lithium-ion battery might result in a dangerous fire. Through the perforation, strong electrolytes may leak.
What transpires when your body lacks electrolytes?Your body's abilities to coagulate blood, contract muscles, maintain acid balance, and regulate fluids can all be affected by a low level of electrolytes. Electrolytes assist in controlling your heartbeat because your heart is a muscle.
How can I determine if I require electrolyte?Zachary Sprague, Md, a family medicine specialist at Scripps Coastal Medical Clinic Carlsbad who specializes in sports medicine, explains that electrolyte imbalances can cause symptoms including muscle twitching and cramping, increased thirst, decreased endurance, a craving for salt, and irritation.
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what is the ph of a buffer system made by dissolving 10.70 grams of nh4cl and 20.00 ml of 12.0m nh3 in enough water to make 1.000 l of solution?kb
pH = 9.33418
Let's assume the temperature of the given buffer system is
25 degree C
. Hence, according to the Henderson-Hasselbalch equation, the pH of the given buffer system is calculated using the following expression as shown below:
pH = 14 - pKb (NH3) + log (nNH3) / (nNH3Cl)
where nNH3 and nNH4Cl represent the no. of moles of NH3 and NH4Cl present in the buffer system.
The molar mass of NH4Cl is 53.491 g / mol. so nNH4CL present in 10.70g of mass is calculated
nNH4CL = 10.70 g / 53.491 g/ mol
= 0.2000 mol
nNh3 present in 20 ml 0f 12 m NH3 is calculated
nNH3 = (12 * 20) / 1000 MOL
= 0.24 MOL
pKb (NH3) is calculated
pKb (NH3) = - log(Kb(NH3))
= - log(1.80 * [tex]10^{-5}[/tex])
= 4.745
Hence the pH of the buffer system
pH = 14 - 4.745 + log 0.2400/ 0.2000
pH = 9.33418
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adenylyl refers to adenosine which is a part of the molecule it changes or acts upon cyclase because it changes a linear group of phosphates into a [ select ] form like a cycle
adenylyl refers to adenosine that is a part of the molecule it changes or acts upon cyclase because it changes a linear group of phosphates into a CAMP form like a cycle.
Stimulation of adenyl cyclase outcomes in formation of cyclic AMP that is launched from the membrane into the cellular and acts inside the cellular to alter a huge sort of mobile processes.
Adenylyl cyclase then plays its catalytic reaction, clipping off phosphates from ATP and forming an extra bond to the ultimate phosphate. The resultant molecule, cyclic AMP or cAMP, is launched and travels fast at some stage in the cellular, regulating the feature of a couple of proteins.
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what is the product of the reaction of acetone with methyl benzoate in the presence naoch2ch3 followed by h3o ?
Acetone reacts with the base to form the enolate. Also, an acid-catalysis reaction is going on, where hydronium ion is reacting with the compound, under condensation reaction.
What is an acid-catalysis reaction?
Acceleration of a chemical reaction through the addition of an acid or a base without the use of the acid or base itself. When the sugar sucrose is broken down into glucose and fructose in sulfuric acid, this is known as acid catalysis.
What is condensation reaction?
The reaction results in the formation of a single molecule from two molecules. During a condensation reaction, a tiny molecule is often eliminated, most frequently water. With an amine functional group on one end and a carboxylic acid functional group on the other, amino acids are significant biological compounds. A covalent connection is formed between the carboxyl carbon of the second amino acid and the amine nitrogen of the first amino acid when two amino acids joined in a condensation reaction. The second product is then a molecule of water.
Acetone reacts with the base to form the enolate.
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Which blue box in the picture below marks the rock layer that is the most likely the oldest assuming the layers have not experienced folding or uplifting?
The rock layer that is the most likely the oldest assuming the layers have not experienced folding or uplifting is Layer Z.
The oldest rock layer is what?According to the law of superposition, the rock strata (layers) that are furthest below the earth's surface are the oldest (having formed first), and the rock strata (layers) that are closest to the surface are the youngest.
Therefore, In actuality, the oldest fossils that have ever been discovered are 3.5 billion year old cyanobacteria found in Archaean rocks in western Australia. Since the oldest rocks are only slightly older—3.8 billion years old—this might come as a surprise.
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See options below
Which blue box in the picture below marks the rock layer that is the most likely the oldest assuming the layers have not experienced folding or uplifting?
Layer W
Layer X
Layer Y
Layer Z
the first step in the industrial recovery of zinc from and ore of zinc sulfide is done by roasting. the equation is:
Answer:
2ZnS(s) + 3O2(g) → 2ZnO(s) 2SO2(g)
(H = -879 kJ/mol would be the answer, I believe.
Explanation:
Brainliest Please?
