This means that if a worker produces 5 pounds worth of commodities each day and needs 1 pounds to eat, clothe, and house himself, the capitalist will make a profit of 4 pounds.
In simple terms, what is Marxism?Founded by Karl Marx, Marxism is a social, political, and economic theory. It analyzes how capitalism affects labor, productivity, and economic growth and makes the case for a worker revolution to depose capitalism and replace it with communism.
What ideologies do Marxists hold?Marxists hold that a person's entire existence, from their religious convictions to their legal and cultural frameworks, is impacted by their economic and social circumstances, particularly the class relations that result from them.
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the stability of the intermediate alkyl cation and the polarity of the solvent will play a big role in the rate of sn1 reaction, while the steric hinderance around the reacting center will be of prime importance in the sn2 reaction. which of the following alkyl halides will be predicted to react faster in the sn1 reaction? select one: 2 - chloro - 2 - methylpropane 1 - chlorobutane 2 - chlorobutane
The compound that would react faster by the SN1 mechanism is 2 - chloro - 2 - methylpropane.
What is the faster SN1 reaction?We know that a nucleophilic reaction would involve the the attack of a negatively charged specie or a specie that has a lone pair of electrons on a positive center.
We know that the SN1 reaction is the nucleophilic substitution that occurs by a unimolecular mechanism and would lead to the formation of a stable carbocation. This is most common with the tertiary alky halides as we know and 2 - chloro - 2 - methylpropane is a tertiary alky halide.
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a half liter of coke has about 58.0g of sugar (straight c subscript 12 straight h subscript 22 straight o subscript 11). what is the molar concentration of the sucrose?
The molar concentration of the sucrose is 13M.
What is molar concentration?
The best way to describe a solution's solute concentration is in terms of molar concentration. The total number of moles of dissolved solute per liter of solution is referred to as molarity.
What is sucrose?
The monosaccharide sugars glucose and fructose are joined to form sucrose, a disaccharide, or two-part molecule. Invertases are digestive enzymes that help honeybees break down plant nectars into honey, which is primarily a mixture of sucrose, glucose, and fructose.
Therefore, the molar concentration of the sucrose is 13M.
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The molar concentration of the sucrose is 13M.
What is molar concentration?
The quantity of moles of a solute per liter of solution is called the molar concentration, sometimes referred to as the molarity.
Molecular weight of sucrose is 342.30 The molar concentration of sucrose is the moles of sucrose divided by the amount of water used to make the solution.
Therefore the molar concentration of the sucrose is 13M.
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What are simple radicals examples?.
Na+, Fe2+, Ag+, Al3+, Cr3+, Au3+, Co2+, Ni2+, and Hg2+ are a few additional examples of basic radicals.
How do fundamental radicals work?A The basic radical is an inorganic salt's ionic component that is produced by the base as during neutralization reaction. A cation is what it is because it is positively charged. Most often, hydroxyl ions are removed from a base to produce a base radical.
How do fundamental radicals develop?Most often, hydroxyl ions are removed from a base to produce a base radical. As an illustration, sodium radical, a cation basic radical, is created when hydroxide ions are removed by sodium hydroxide (caustic soda).
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how is the periodic table organized in regards to blocks? what are these specific blocks? how do they relate to electron location and orbitals?
The periodic table is organized according to the blocks s-block, p-block, d-block, and f-block; these particular blocks are related to electron position and orbitals.
A group of elements in the periodic table known as a block are connected by the atomic orbitals in which their valence electron or vacancies are located. It appears that Charles Janet coined the phrase originally. S-block, P-block, D-block, and F-block are the names of the four blocks, each of which is named after a certain orbital.
The known elements are arranged in the periodic table chart in order of increasing atomic electron and recurrent chemical characteristics. They are arranged in a tabular format, where a row denotes a time period and a column a group.
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How does iron oxide rust form?.
This rust is formed as a result of an oxidation reaction between oxygen and iron inside a moisture environment (such as air containing high levels of moisture).
The formation of rust, a mixture of iron oxides, on the surface of iron objects or structures is referred to as rusting. Rust is an iron oxide formed by the reaction of iron and oxygen in the presence of water or moisture in the air. When oxygen reacts with iron, iron oxide, also known as rust, is formed. By providing moisture, the water aids the reaction of oxygen with iron.
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Fe3+ ions interact more strongly with water molecules in aqueous solution than Fe2+ ions do. Give two reasons for this stronger interaction, and justify your answer using Coulomb's law.
Fe3+ has a smaller radius and so creates stronger ion-dipole bonds with water.
Fe3+ reportedly does have a smaller radius than in other ions, therefore results in stronger ion-dipole interactions with water.
Explain what water is.
Water is a substance that exists in gas, liquid, and solid phases and is made up of the basic elements hydrogen and oxygen. Among the most prevalent and necessary substances is it. It is a colourless, tasteless room temperature liquid with the crucial property for degrading several other compounds.
What purpose does water serve?
hold the temperature steady. Cushion and lubricate joints. The spine and other delicate components must be guarded. Use bowel movements, sweating, and urination to cut waste.
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What are the substances that dissolve rapidly in water called?.
The substances that dissolves rapidly in water are called Soluble substances.
A soluble substance is one that dissolves in a liquid, usually water. It might look like it's simply disappeared, but in fact, it's just mixed in to form a liquid called a solution . The solid that dissolves is called the solute . The liquid that dissolves the solute is called the solvent. Sugar, salt, mustard oil, sand, sawdust, honey, chalk powder, petals of flowers, soil, crystals, glucose . In the simple way solubility is the ability of a substance, the solute, to form a solution with another substance, the solvent. Everything is made of particles which are always moving. When a soluble solid is mixed with the right liquid it forms a solution. This process is called dissolving.
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Predict the major organic product of the reaction shown. Include any lone pairs of electrons and nonzero formal charges. Draw only one compound. Your product should include a ring structure. H2N excess CH38r 1st attempt hl See Periodic Table See Hint Select a tool to begin drawing CI Marvin iS
Amines are organic substances that have a lone pair of nitrogen atoms in them.
Explain about the Amines?Alkylamines and arylamines respectively, are essentially derivatives of ammonia (NH3) in which one or more hydrogen atoms have been swapped out for a group from the alkyl or aryl family.
An important class of chemical compounds known as amines is created by substituting one or more hydrogen atoms in the ammonia molecule with an alkyl/aryl group (s). They coexist in nature with proteins, vitamins, alkaloids, and hormones. Polymers, dyes, and pharmaceuticals are examples of synthetic materials.
A nitrogen atom that is creating a total of three bonds makes up the functional group known as the amine: One connection to the organic chain's parent. Two distinct bonds, either involving an alkyl group R or a hydrogen atom
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What is the net ionic equation for the reaction that occurs when you mix aqueous solutions of nahco3 and hc2h3o2 ?.
The net ionic equation for the reaction that happens when you combine nahco3 with hc2h3o2 aqueous solutions.
HCO3-(aq) + [tex]H^{+}[/tex] (aq) → H2o(l) + Co2(g)
Below is the balanced chemical equation for the reaction between sodium bicarbonate and acetic acid.
NaHCO3 + CH2COOH → CH3COONa + H2O + CO2
The net ionic equation is:
HCO3- + [tex]H^{+}[/tex] → H2O + CO2
In the form of symbols and chemical formulas, a chemical equation is a symbolic representation of a chemical reaction. On the left side are the entities that make up the reactants, and on the right side are the entities that make up the products. There is a plus sign between the entities that make up the reactants and the products, and the arrow pointing in the direction of the products indicates the direction of the reaction. [1] The chemical equations could be mixed, structural (represented by a picture diagram), or both. The stoichiometric numbers' absolute values are shown as coefficients next to the symbols and formulas of the various entities. In 1615, Jean Beguin drew the first chemical equation.
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4) which compound has the lowest boiling point? a) ch3cho b) ch3ch2cho c) ch3ch2oh d) ch3ch2ch2oh e) ch3coch3
The lowest boiling point is for ethene. Ethane, ethene, and ethyne have boiling temperatures of 184.5 K, 171 K, and 198 K, respectively.
What other name does boiling point go by?Boiling point and saturation temperature are synonyms. Sometimes the measurement's pressure serves as a definition for the boiling point. The standard heating value was established by the Global Alliance for Pure and Applied Catalysis (IUPAC) in 1982 as the temperature at which water boils at one bar of pressure.
What is boiling, to put it simply?When a liquid was subjected to heat, it undergoes a process known as boiling in which a vapor is created. When the liquid's vapor pressure equals the air pressure, the phase transition from liquid to gaseous occurs.
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In identifying an unknown cation that was exposed to a flame that turned green, the conclusion that the cation was
a- HCl
b- Sulfur
c- Nal
d- copper
Copper cation exposed to a flame that turned green.
The chemical element copper (Cu) is a reddish, very ductile metal belonging to Periodic Group 11 (Ib) that has an exceptional ability to conduct heat and electricity. In nature, copper may be found in its free metallic state. Neolithic (New Stone Age) people originally utilised this local copper (about 8000 BCE) as a replacement for stone. Around 4000 BCE, Mesopotamia saw the beginning of metallurgy when copper was cast into molds, reduced to metal from ores with fire and charcoal, and purposefully alloyed with tin to become bronze (c. 3500 BCE). Nearly all of the copper the Romans used came from Cyprus. Its name, aes Cyprium, or "metal of Cyprus," was eventually abbreviated to cyprium and then changed to cuprum.
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19.60 ml of a solution of 0.07969 m hcl was used to titrate a buffer solution of acetic acid and sodium acetate and reach the equivalence point. a. calculate the moles of sodium acetate in the original buffer solution.
The original buffer solution is 0.00312.
Solution:
let initially a moles of sodium acetate present
moles of HCl added = Molarity x volume = 0.07969x 19.6×10⁻³= 1.56×10⁻³
to attain an equivalence point.
moles of sodium acetate = miles of acetic and (x-1-56×10⁻³) = 1.56×10⁻³
x = 2x1.56×10⁻³
= 0.00312
so, the number of moles of sodium acetate in the original buffer solution is 0.00312.
Sodium acetate is a widely used reagent in molecular biology applications. Used as a buffering agent with acetic acid. Basic buffers have weak bases and salts of bases. Natural buffers are found in organisms whose biochemical reactions are highly sensitive to changes in pH.
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What is the formula to add values from cell A2 to cell A20?.
In Excel, the syntax =SUM(A2:A20) is used to add the values in cells A2 and A20.
A straightforward formula can be used to add the values in a range (a collection of cells), however, the SUM function is more user-friendly when dealing with larger numbers. In contrast to =A2+A3+A4+A5+A6, =SUM(A2:A6) is less likely to have typographical errors.
To formulate the equation:
In a cell, enter =SUM and then the opening parenthesis ().
Type A2:A4 to enter the first formula range, also known as an argument (a piece of information required for the formula to function).
To distinguish the first argument from the second, type a comma (,).
C2:C3 is the second argument to type.
Enter after typing a closing parenthesis.
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Do like radicals have the same radicand?.
Yes, similar radicals are those with the same index and radicand. When the index and the radicand of two or more radicals are the same, combining radicals is conceivable.
Finding a number that, when multiplied by itself, equals the value indicated by the radical symbol is instructed. Radicand is the name for the number displayed beneath the radical sign.
We must first transform two or more radicals into radicals of different orders in order to compare them. The radicands must then be compared. The radicals of various orders can be changed into radicals of the same order by using the least common multiple of the various orders provided.
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In a common reaction in living things, glucose combines with oxygen to form carbon dioxide and water vapor. In an experiment on this reaction, the masses of all four substances are measured. This data table shows the measurements.
Which change to the reaction would allow more than 198 grams of carbon dioxide to be produced?
The change to the reaction that would allow more than 198 grams of carbon dioxide to be produced is to increase the mass of glucose to 135 g.
What are the moles of carbon dioxide present in 198 grams of carbon dioxide?The moles of carbon dioxide present in 198 grams of carbon dioxide is calculated as follows:
Moles of carbon dioxide = mass / molar mass
molar mass of carnbon dioxide = 44.0 g/mol
Moles of carbon dioxide = 198 / 44
Moles of carbon dioxide = 4.5 moles
The equation of the breakdown of glucose is:
C₆H₁₂O₆ + 6 O₂ (g) ---> 6 CO₂ (g) + 6 H₂O (g)
Assuming that oxygen is in excess, moles of glucose require to produce 4.5 moles of carbon dioxide = 4.5 * 1/6 moles
Moles of glucose required = 0.75 moles
Hence, mass of glucose required = 180 g/mol * 0.75
mass of glucose required = 135 g
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Complete question:
In a common reaction in living things, glucose combines with oxygen to form carbon dioxide and water vapor. In an experiment on this reaction, the masses of all four substances are measured. This data table shows the measurements.
Mass of glucose = 120 g
Mass of Oxygen = 130 g
Mass of Carbon dioxide = 175 g
Mass of Water = 70 g
Which change to the reaction would allow more than 198 grams of carbon dioxide to be produced?
A gas mixture contains each of the following gases at the indicated partial pressures:N2= 215 torrO2= 102 torrHe= 117 torra) What is the total pressure of the mixture?b) What mass of each gas is present in a 1.35 L sample of this mixture at 25.0 C ?
Oxygen gas has a partial pressure of 443 torr. He (Helium gas) has a partial pressure of 159 torr. The sample combination has a 1.10 L volume.
How can you determine a gas mixture's partial pressure?Partial pressures can be calculated in one of two ways: 1) To determine the individual pressure of each gas in a mixture, use PV = nRT. 2) Determine the proportion of pressure from the total pressure that may be assigned to each individual gas by using the mole fraction of each gas.
What is the mixture's overall pressure?The partial pressures of the various gases are added to determine the total pressure of a gas combination.
Total pressure = 215+ 102+117= 443 torr, or 0.443 atm.
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Which is considered a chemical mutagen Brainly?.
Option B: tobacco is considered a chemical mutagen.
The term "mutagens" refers to chemical or physical substances that have the power to alter an organism's DNA (deoxyribonucleic acid), hence raising the rate of mutation in the population. Chemicals that cause genetic material to mutate are known as chemical mutagens. Tobacco is regarded as a chemical mutagen because it alters a person's DNA and causes cancer to develop. The answer is therefore "tobacco."
Up to 18% of the 1239 chemicals in the test dataset that were also found in tobacco products have the potential to cause mutagenesis. Some of the harmful substances found in tobacco are also found in the plant itself.
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Complete question is:
Which is considered a chemical mutagen?
tanning beds
tobacco
X-rays
precious metals
During this reaction, water is evaporating from the solution at the same time some of the CO2 is dissolving into the water. How might these factors affect the results of the experiment? Explain each effect and the overall effect.
Alka-Seltzer in Water Reaction
Water and carbon dioxide chemical reaction in the following way: CO 2 (g) carbon dioxide + H 2 O (l) water = H 2 CO 3 (aq) carbonic acid.
What happens when CO2 reacts with water?When carbon dioxide and water combine, carbonic acid is created. From this acid, hydrogen ions separate, raising the system's acidity. Therefore, anthropogenic carbon dioxide emissions to the atmosphere have the potential to enhance precipitation in addition to any warming impact.The chemical change that takes place when carbon dioxide and water interact is the formation of carbonic acid. However, Henry's rule, which states that when a gas is converted into a liquid, pressure changes as well, denotes a physical change when these two molecules join.Water and carbon dioxide are the byproducts of hydrocarbon burning.Decarbonation, often known as "Degasification," is the most practical approach to remove free carbon dioxide from water. By using the decarbonation process, CO2 levels may be reduced by 99% or more.Learn more about CO2 reacts with water refer to :
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for a copper-silver of composition 50 wt% ag-50% cu and at 777 c do the following: i)determine the mass fractions of a and b. ii) determine the mass fractions of primary b and eutectic microconstituents. iii) determine the mass fraction of eutectic a.
A) The mass fractions of a and b phases are respectively; [tex]W_{a}[/tex] = 0.49 and [tex]W_{b}[/tex] = 0.50 ,B) [tex]W_{a}[/tex] = 0.34 and W_e = 0.65 ,C) The mass fraction of eutectic αais; [tex]W_{a}[/tex]= 0.07 .
What is the mass fraction?It is the proportion of that component's mass to the mixture's overall mass. This equals the mass fraction, which must be multiplied by 100 to be converted to a percentage.
Briefing :
(a) We are trying to find the mass fractions of a and b phases.
From the Cu - Ag phase diagram, we have;
[tex]C_{a}[/tex] = 8.0 wt% Ag
[tex]C_{b}[/tex] = 91.2 wt% Ag
C₀ = 50 wt% Ag
Using the lever-rule, we have;
Total mass fraction of a is;
[tex]W_{a}[/tex] = ( [tex]C_{b}[/tex]- C₀)/([tex]C_{b}[/tex] - [tex]C_{a}[/tex])
[tex]W_{a}[/tex] = (91.2 - 50)/(91.2 - 8)
[tex]W_{a}[/tex] = 0.49
Total mass fraction of b is;
[tex]W_{b}[/tex] = (C₀ - [tex]C_{a}[/tex])/([tex]C_{b}[/tex] -[tex]C_{a}[/tex] )
[tex]W_{b}[/tex] = (50 - 8)/(91.2 - 8)
[tex]W_{b}[/tex] = 0.50
(b) We want to find the mass fractions of primary a and eutectic microconstituents. We have;
C_eutetic = 71.9 wt.%Ag
Mass fraction of primary a is;
[tex]W_{a}[/tex] = (C_eutetic - C₀) /(C_eutetic - Ca)
[tex]W_{a}[/tex] = (71.9 - 50)/(71.9 - 8)
[tex]W_{a}[/tex] = 0.34
Mass fraction of eutectic micro-constituents is;
W_e = (C₀ -[tex]C_{a}[/tex] )/(C_eutetic - [tex]C_{a}[/tex])
W_e = (50 - 8)/(71.9 - 8)
W_e = 0.65
(c) Determine the mass fraction of eutectic α.
From the eutetic reaction;
Total a = Primary a + a in eutectic mixture
Thus:
mass fraction of eutectic a = Total a - Primary a
mass fraction of eutectic a= 0.8 - 0.73 = 0.07
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write down the common (not iupac) names of the organic molecules that would be released if this molecule were hydrolyzed:
Triacylglycerol or triglycerides. Triacylglycerols molecule were hydrolyzed into free fatty acids and glycerol before being converted into energy.
What lipids undergo hydrolysis?Lipids, whether they are saturated or unsaturated, will hydrolyze with time. The following five hydrolysis byproducts are produced when a single phosphatidylcholine molecule is hydrolyzed: Glycerophosphorylcholine, free fatty acids, 1-Acyl-Lyso-PC, and 2-Acyl-Lyso-PC.
Triglycerides are broken down by what kind of reaction?Lipolysis. Triglycerides must first undergo hydrolysis to separate into their two main parts, fatty acids and glycerol, in order to be converted into energy. The process of lipolysis occurs in the cytoplasm.
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if none of the bread molded what do you think the reason
Answer:
It old and rotted and the date had expired
Calculate an approximate heat of combustion for ethane (C2H6) in kilojoules per mole by using the bond dissociation energies in the table. (The strength of the O=O bond is 498 kJ/mol, and that of a C=O bond in CO2 is 804 kJ/mol.)
Heat of combustion of ethane is -1559.7 J/mol.
What is heat of combustion?
It is the heat evolved when 1 mole of a substance is burnt in oxygen under standard conditions.
value of ∆H° can be calculated from the change in enthalpy of standard formation:
∆H ° rxn = Σn ∆Hf° of product - Σn AHf of reactants
∆H ° rxn = ∆Hf of the product (s) if ∆Hf (reactants) = 0
elements in standard conditions are not included in enthalpy calculations because the enthalpy of those elements under the standard conditions is zero.
We have the following information;
∆H° f H2O: - 285.8 kJ
∆H°f CO2: - 393.5 kJ
∆H°f C2H6: - 84.7 kJ
The equation of the reaction is;
2 C2H6 + 7 O2 --> 4 CO2 + 6 H2O
So
∆H° reaction = [4(- 393.5) + 6(- 285.8)] - [2(- 84.7) + 7(0)]
∆H° reaction = [(- 1574) + (- 1714.8)] + 169.4
∆H° reaction = - 3119.4J / m * ol
If 2 moles of C2H6 produces -3119.4 J/mol then
1 mole of C2H6 produces -3119.4 /2
= -1559.7 J/mol
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you know the number of coulombs passed and the number of moles of h2 collected. how many electrons per h2 molecule?
The number of electrons in one mole of H2 molecule was found to be. 6.023x10^23
what are electrons ?
The electron is a subatomic particle with an initial electric charge of -1. Electrons are the first generation of the lepton particle family and are often regarded as elementary particles due to the lack of known components or substructure. The mass of an electron is roughly 1/1836 that of a proton. The electron's quantum mechanical characteristics include a half-integer intrinsic angular momentum (spin) given in units of the decreased Planck constant, Because electrons are fermions, they cannot inhabit the same quantum state, according to the Pauli exclusion principle. Electrons, like other elementary particles, have both particle and wave properties: they may collide with other particles and be diffracted like light.
Because electrons have a smaller mass and hence a longer de Broglie wavelength for a given energy, their wave characteristics are simpler to examine with experiments than those of other particles such as neutrons and protons.
The number of electrons in one mole of H2 molecule was found to be. 6.023x10^23.
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What process was primarily responsible for the development of the present percentage of free oxygen in the Earth's atmosphere?.
The process is known as photosynthesis, and it involved creating gaseous, or free, oxygen from carbon dioxide, water, and sunshine.
Air or a gas: which is oxygen?Oxygen is a transparent, tasteless, & cloud of gas that is essential for all life forms. It is ingested by animals, who then convert it to carbon dioxide, which is then used by plants to create new carbon and release oxygen back into the atmosphere.
Is oxygen pure enough for you to breathe?Normal air only has a 21% oxygen content. As a result of the high oxygen content, all of the body's organs may benefit from having enough oxygen. Long-term inhalation of 100% oxygen can, unfortunately, alter the lungs in ways that could be dangerous.
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Corrosion of structural metals can occur in a variety of ways. Identify the appropriate type of corrosion for the following situation:
Localized attack between a metal-to-metal joint in which high concentrations of H+ and Cl- ions are found.
Some of the types of corrosion are uniform corrosion, galvanic corrosion, stress corrosion etc.
Corrosion is a natural process that generally converts a refined metal into a more chemically stable oxide. It is the gradual deterioration of materials (usually a metal) by chemical or electrochemical reaction with their environment. Corrosion engineering is the field dedicated where in they focus on controlling and preventing corrosion.
Common types of corrosion that are seen within industrial, marine or also offshore and oil and gas include 5 main categories. These are what we will cover in this blog post, including suggestions on how to prevent it.
Metals that are attacked by corrosive substances are open to damage that can effect the durability and safety of the alloy. This is a huge concern for sectors of industry with environmental considerations. For example, within the marine and offshore industries, engineers will require metals that can withstand.
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to improve the safety of your location and comply with regulations regarding work environments with hazardous materials, you have been assigned to assemble material safety data sheets (msds) for all chemicals used in your shop. how should you obtain these documents?
Ni-Cad, NiMH, and other notebook battery types.
The herbal surroundings or herbal global encompasses all living and non-dwelling things happening evidently, meaning in this case no longer synthetic. The term is most often carried out to the Earth or a few elements of the Earth.
Social and environmental determinants of fitness are the overall set of social and bodily situations in which humans stay and paintings, including socioeconomic, demographic, environmental, and cultural factors, along with the fitness gadget.
Examples of environmental developments are your favored tune, being an awesome basketball participant, and the language you communicate. those tendencies are environmental tendencies because they are trends that you choose or study, or which are encouraged via the region you live.
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For each reaction indicated below, will a reaction move in the forward (right) or reverse (left) direction? (Of the reaction arrows presented in each reaction, select the arrow - via the multiple choice circle before it - that best indicates the acid-base equilibrium position.)
The reaction will advance in the direction indicated by the given statement.
What does a written reaction mean?A document is a piece of writing that expresses an individual's viewpoint on a certain piece of work. This essay should include a synopsis of the source material, but the main emphasis should be on your opinions and justifications regarding the topics included in the source text.
Is an answer a reaction?In the heat of the moment, decisions are made without much thought to the consequences of the possible consequences. Reaction: Making a comment in response to with an action or remark made by another person. Response is more thoughtful and logically based.
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Serving as a coolant, lubricant, and solvent are all functions of ______.
water
Serving as a coolant, lubricant, and solvent are all functions of water.
Water serves as a lubricant. water makes up a saliva and the fluids around the joints. water is also the most common coolant .water is best suited for the heat transfer medium because of the its high heat capacity value and the low cost make value. water is also called as the universal solvent. water dissolves more substance than any other liquid will dissolved. water is a polar molecule with having the partially positives and the negative charges.
Thus, Serving as a coolant, lubricant, and solvent are all functions of water.
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What happens to h the height of the mercury column, if the atmospheric pressure increases?.
The height of mercury column increases. Length of the column is directly proportional to the pressure exerted on the column.
What is atmospheric pressure?
The force that gas particles in the Earth's atmosphere apply to objects when they hit with them is known as atmospheric pressure. The atmospheric pressure is measured with a barometer. As height rises, atmospheric pressure falls.
What is mercury?
A naturally occurring chemical element called mercury is present in coal deposits as well as rock found in the earth's crust. It has the atomic number 80 and the symbol "Hg" on the periodic table. It comes in a variety of shapes: Metallic element mercury.
Therefore, the height of mercury column increases. Length of the column is directly proportional to the pressure exerted on the column.
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how many minutes would a 12.5 ampere current have to be applied to plate out 12.5 grams of copper metal from aqueous copper(ii) sulfate solution?
The minutes would a 12.5 ampere current have to be applied to plate out 12.5 grams of copper metal from aqueous copper(ii) sulfate solution are 50.65 min.
Deposition of cu is :
change in coloumb = Ax T = 12.5 A Total no. of moles = 12.5 x t x c x moles of electrons / 96500012.5 / 96500Cu formed = 12.5 / 63.5 molt = 12.5 x 2 x 96500/63.5 x 12.5 = 3089.375 sec = 50.65 min.The time is calculated by the calculation of total no. of moles calculted of copper an thus the time came out to be 3089 secs and 50.65 in minutes.
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