What color will a solution of water, glucose, and Benedict's reagent turn?

The number that would be written in front of the water in the formula is 2.85

The mass of the hydrate is 1.55 g,

the mass of the anhydrate (CoCl2) is 1.11 g and

the mass of the water lost is 0.44 g.

We will use the information to calculate the number of moles of each substance present in the hydrate.

1.11 g of CoCl2 is equal to 1.11 g / ( molecular weight of CoCl2) = moles of CoCl2

= 1.11/ 129.839 g/mol

= 0.00854 moles of CoCl2

0.44 g of water is equal to 0.44 g / ( molecular weight of H2O) = moles of water

=  0.44 / 18.015

= 0.0244 moles of water

x = moles of water / moles of CoCl2

x = 2.85

The number that would be written in front of the water in the formula is 2.85

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Because they are more attracted to one another due to their polar nature, NH3 molecules crash with the container walls with less force than CH4 molecules.

Methane, or CH4, is the non-polar chemical.

The covalent bond holds the CH4 molecules together. The substance is referred to as a covalent compound. Sharing an electron pair results in the formation of the covalent molecule. A polar compound is NH3. The polar covalent link is the NH3, a covalent bond with a net dipole moment.

As a result, while CH4 molecules lack polarity, NH3 molecules do.

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The process's entropy change has the sign  ΔSsys > 0

The entropy of an isolated system never decreases, according to the Second Law of Thermodynamics.

This means that for a process to be spontaneous, the entropy of the system must increase.

This is the theory used in this question to predict the sign of the entropy change for the dissolution process.

In the given  question ,

This is an example of a dissolution process, which is an endothermic process because energy is required to break the strong ionic bonds of the solid.

Therefore, the entropy of the system increases as the molecules become more disordered, leading to a positive entropy change, ΔSsys > 0.

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The acidity of an acid H-A will increases if there are more electronegative atoms attached to element A. In an acid H-A, the electronegative atoms attached to A stabilize the conjugate base by induction.

An acid is a chemical that gives off hydrogen ions in water and it forms salts by combining with certain metals. Acidity is measured on a scale known as the pH scale. On this scale, a pH value of 7 will be neutral, and a pH value of less than 7 to 0 shows increases acidity.

When an acid will dissociates into its ions in water, it loses a hydrogen ion. The species which is formed is the acid's conjugate base. Conjugate base is the base member, X-, of a pair of the compounds that transform into each other by gaining or losing a proton.

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--The given question is incorrect, the correct question is

"Describe the effect of the presence of more electronegative atoms on acidity?"--

The number of mole of sulphur, S the match contain is 2.66 moles

Avogadro's hypothesis gives a well defined relationship between number of mole and number of atoms. This is given below:

6.02×10²³ atoms = 1 mole of substance

With above information, we can obtain the number of mole is sulphur, S present in the 1.6×10²⁴ atoms of sulphur. Details below:

From Avogadro's hypothesis,

6.02×10²³ atoms = 1 mole of sulphur

Therefore,

1.6×10²⁴ atoms = (1.6×10²⁴ atoms × 1 mole) / 6.02×10²³ atoms

1.6×10²⁴ atoms = 2.66 moles of sulphur

Thus, we can conclude from the above calculation that the number of mole is 2.66 moles

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Answer:

80.0 grams of LiBr

Explanation:

The balanced chemical equation for the reaction is:

2 LiCl + Br2 -> 2 LiBr + Cl2

Since the ratio of Br2 to LiBr is 1:2, for every 1 gram of Br2 that reacts, 2 grams of LiBr will be produced.

Therefore, if you had 40.0 grams of Br2, you would produce 2 x 40.0 = 80.0 grams of LiBr.

There are 67.3 grams of water (a), the percentage of fat is 25.2%  (b), the percentage of water is  53.84% (c), the percentage of protein is 20.96%(d), and there are grams of fat  44.22 grams(e).

26.2 + 31.5 = 57.7 - 125 = 67.3 grams of water

Knowing the total 125 represents 100%, let's calculate the percentages:

Fat: 31.5 x 100 /125 = 25.2%

Protein: 26.2 x 100 / 125 = 20.96%

Water: 67.3 x 100 / 125 = 53.84%

6.2 ounces = 175.76 grams (1 ounce = 28.34 grams)

125 = 31.5

175.75 = x

x = 31.5 x 175.5 / 125 = 44.22 fat grams

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Answer:

The reason for this is likely an exothermic reaction, where the combination of substances A and B results in a release of heat energy.

Explanation:

An exothermic reaction is a chemical reaction that releases heat energy. This heat can cause an increase in temperature, sometimes to a point where it becomes uncomfortable or even dangerous to touch the mixture. The exact reason why the mixture becomes hot depends on the chemical nature of substances A and B and the reaction they undergo when mixed. Some possible causes could include an increase in the rate of molecular motion as the reaction progresses, or the breaking and formation of chemical bonds, which releases energy in the form of heat. Additionally, the reaction could be releasing gases that are expanding and generating heat as a result. To determine the exact cause, a detailed analysis of the chemical composition and reaction kinetics of the mixture would be required.

The mechanism for the conversion of an acid chloride to a carboxylic acid is a nucleophilic acyl substitution reaction. In this reaction, a nucleophile, typically a hydroxide ion or an alcohol, attacks the electrophilic carbon of the acid chloride, resulting in the displacement of the chloride leaving group. The curved arrow in the reaction is used to show the movement of electrons during the reaction.

In the reaction below, a hydroxide ion attacks the electrophilic carbon of the acid chloride, resulting in the formation of the carboxylic acid. The curved arrow shows the movement of the electrons during the reaction.

H O \ / \ / C==Cl | OH

Curved Arrow [1]:

H O \ / \ / C<=Cl | OH

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To determine how many milliliters Shelby and Calvin need to pour from each beaker to make their solution, they can set up a system of equations as follows:

Let a be the amount, in milliliters, of solution from beaker a, and let b be the amount, in milliliters, of solution from beaker b.

Solving this system of equations, we get: a = 3.5 milliliters and b = 1.5 milliliters. Therefore, Shelby and Calvin need to pour 3.5 milliliters of solution from beaker a and 1.5 milliliters of solution from beaker b to make their solution.

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1. I personally prefer to use figure 2 as the easier one to understand, because with such a presentation we can see the difference in each item, it can be seen from the high and low of the chart.

2. To get data in the form of a number of things, it is more efficient to use diagram in figure 1 data.

A diagram is a two-dimensional visualization which is a representation of data. A diagram that represents or values in an organized manner. Diagrams are usually simple pictures that use lines and symbols to represent data.

Various types of diagrams are simplified and structured visual representations of concepts, ideas, constructs, relationships, statistical data, anatomy, and more. Diagrams can be used for any aspect of human activity to explain or illustrate a topic.

Complex data is usually easier to understand with visual aids. Sometimes, this technique uses three-dimensional visualization which is then projected onto a two-dimensional surface.

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The subshell from which an electron would have to be removed to make a cation, and the subshell to which an electron would have to be added to make a anion is the electrons removed in the outermost p orbital to form cations, and the addition of outer shell electrons in group 17 forms anions.

Ionization energy is the energy required to remove the weakest bonded electron by an atom or ion in the gaseous state. The size of the ionization energy is strongly influenced by the distance from the nucleus to the electrons in the outer shell (atomic radius) and the core charge.

Cations are atoms that have lost one or more electrons. The subshell from which electrons must be removed to make cations is the outermost p orbital and then the s orbital.  Losing a negatively charged electron will make the atom that was initially neutral become positively charged. While the subshell that gains electrons is called anion. The addition of electrons to the outermost subshell of the atom will give it a negative charge. Group 17 elements add one outer shell electron to form an anion.

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Option (d) is correct. Nitrates used in crop fertilizers does not contribute to ozone depletion.

The Ozone depletion can be defined as the gradual thinning of ozone layer of the earth in the upper atmosphere caused by the release of chemical compounds containing gaseous chlorine or bromine from industry and other human activities. Ozone layer depletion is a major environmental problem because it increases the amount of ultraviolet  radiation that reaches the surface of the earth which increases the rate of skin cancer, eye cataracts and immune system damage. The Ozone depleting substances are chlorofluorocarbons (CFCs), halon, carbon tetrachloride (CCl4), methyl chloroform (CH3CCl3), hydrochlorofluorocarbons (HCFCs), methyl bromide (CH3Br), bromochloromethane (CH2BrCl).

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The formula for calcium bromide monohydrate is CaBr2•H2O.

A formula is a concise way of expressing a relationship between different variables. It is a mathematical expression that uses symbols and/or numbers to represent different quantities. Formulas can be used to calculate a wide variety of things, from the area of a circle to the amount of force needed to lift a certain weight.

The "•" symbol indicates that the compound contains one water molecule for every two calcium bromide molecules. The "H2O" part of the formula indicates that the compound contains two hydrogen atoms and one oxygen atom.

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Answer:

b-  sediment

Explanation:

the remains of plants and animals are known as sediments. It can be as small as a grain of sand or as large as a boulder. Sediment moves from one place to another through the process of erosion.

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When a sample of an unknown liquid has a mass of 15.19 g and a volume of 4.69 mL, the density of this liquid is 3.238 g/ml.

Density is the mass of a material substance per unit volume. Density is defined as d = M/V, where d represents density, M is mass, and V is volume. Density is generally measured in grams per cubic centimetre. The density of something describes how compact or dense it is. Let's say you have two boxes, one huge and one tiny. They both, however, weigh the same. That suggests the small box is denser than the large box. The density of something also indicates how dense or packed it is. The density of a volume is the amount of substance contained inside it. A dense thing is heavier than a less dense object of the same size. An item with a density less than that of water will float atop it;

Here,

mass=15.19 gram

volume=4.69 ml

density=15.19/4.69

=3.238 gram/ml

The density of this liquid when sample of an unknown liquid has a mass of 15.19 g, and a volume of 4.69 mL is 3.238 g/ml.

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The bioplastics at room temperature have better flexibility than they have at the refrigerator temperature. The chain mobility of the polymer reduces at lower temperature.

Bioplastics are biodegradable polymers. The sugar found in plants is converted into plastic to create bioplastics. In the US, corn is the source of that sugar.

Because of this, bioplastics are more environmentally friendly and renewable than traditional plastics. Currently, a substantial amount of bioplastics are manufactured in two different forms.

They are referred to as polyhydroxyalkanoate (PHA) and polylactide acid (PLA) (PHA). Blair, Nebraska-based Nature Works is the largest PLA manufacturer. These polymer chains are flexible at room temperature however, the chain mobility gets hindered at very lower temperature and their flexibility decreases.

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The name of the molecule using IUPAC Organic rules is 2-Methyl-benzen-1-ol.

Is benzene very poisonous?

Because of the way that benzene makes the body's cells behave, poisoning can be fatal. The bone marrow cells' ability to make red blood cells can be affected by exposure to benzene, as can the immune system's white blood cells.

Is benzene illegal in the US?

Toys and other items meant for use in the household are no longer allowed to contain benzene as an ingredient. Benzene smells pleasant, fragrant, and similar to gasoline. Most people can smell benzene in the air between 1.5 and 4.7 ppm.

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The balanced half-reaction for the oxidation of gaseous arsine (AsH3) to aqueous arsenic acid (H3AsO4) in acidic aqueous solution is:

(1) The reaction of arsine with water:

(2) Balancing the oxygen using hydrogen ions:

(3) Accounting for the number of electrons transferred in the redox reaction:

In this reaction, the gaseous arsine (AsH3) acts as the reducing agent, while the water molecules (H2O) and hydrogen ions (H+) in the acidic solution provide the electrons (e-) and protons required for the oxidation to occur. The reaction results in the production of aqueous arsenic acid and hydrogen ions.

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The new volume in the graduated cylinder if 14g of iron and 14g of lead is added is 148.37 mL.

Volume is a three-dimensional measure of space that comprises a length, a width and a height.

It is measured in units of cubic centimeters in metric, cubic inches or cubic feet in English measurement.

According to this question, a graduated cylinder contains 145mL of water. A 14.0g of iron and 18.0g of lead was added.

This means that the volume of the water in the graduated cylinder will be 145 + 1.59 + 1.78 = 148.37 mL

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Answer:C)

Explanation:

because i got it right

According to unit conversion,  conversion of metric units is 8.23 ml= 0.0823 dl and 0.0647 cl= 0.064×10⁷ nl.

Unit conversion is defined as a multi-step process which involves multiplication or a division operation by a numerical factor.The process of unit conversion requires selection of appropriate number of significant figures and the rounding off procedure.

It involves a conversion factor which is an expression for expressing the relationship between the two units.A conversion ratio always has value which equals to one which indicates that numerator and denominator have values which are expressed in different units.

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program to display the population for each of the next five years. Assume the current population is 312,032,486 and a year consists of 365 days:

public class Exercise_11 {

  public static void main(String[] strings) {

      double birthRateInSeconds = 7.0;

      double deathRateInSeconds = 13.0;

      double newImmigrantInSeconds = 45.0

      double currentPopulation = 312032486;

      double secYears = 60 * 60 * 24 * 365;

      double numBirths = secondsInYears / birthRateInSeconds;

      double numDeaths = secondsInYears / deathRateInSeconds;

      double numImmigrants = secondsInYears / newImmigrantInSeconds;

      for (int i = 1; i <= 5; i++) {

          currentPopulation += numBirths + numImmigrants - numDeaths;

          System.out.println("Year " + i + " = " + (int)currentPopulation);

      }

  }

}

A population is the entire collection of humans, whether that group is a nation or a group of people who share a feature. A population in statistics is the group of people from which a statistical sample is taken for a research. Population refers to the total number of people who live in a specific place at any one moment.

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If we remove some solid silver chloride the equilibrium will react to decrease the concentration of silver cation.

According to Le Chatelier's Principle, the system at equilibrium will react to a stress placed on the position of the equilibrium in such a way as to minimize this stress. The position of the equilibrium will shift in response to a stress placed on either the reactant or the product side.

            Ag+ (aq.) + Cl- (aq.) ⇌ AgCl (s)

Equilibrium is a state of balance between opposing forces or actions that is either static or dynamic. If we remove the salt it will cause the concentration of aqueous silver cations to increase. This will place a stress on the position of the solubility equilibrium. Then the equilibrium will react in such a way as to decrease the concentration of silver cations. We have to shift to the left since the reverse reaction.

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The following data were obtained when a sample of barium chloride hydrate was analyzed as described in the Procedure section. Mass of empty test tube Mass of test tube and hydrate (before heating) Mass of test tube and anhydrous salt (after heating) 18.42 g 20.75 g 20.41 g Calculate :

Note: The percent water in the hydrate should not be negative, so this calculation must be incorrect.

Important terms in studying hydrated water are as follows: 1. Anhydrous salt is a salt that has lost water molecules, this salt is formed from the decomposition of heated hydrate salts 2. Hydrate salts are salts that have a fixed number of water molecules in each molecule.

Compounds that contain water of crystals are called hydrates, while compounds that do not contain water of crystals are called anhydrous compounds

The word element in Greek is stoicheion, while stoichiometry or stoichiometry has the meaning of measuring elements which include several things, namely atomic mass, molecular mass, empirical formula, molecular formula, concentration, number of moles, reaction equations and everything related to chemical reactions. The number of particles present in a substance in stoichiometry is called moles.

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Answer:

A is the answer

Explanation:

The elements in Group 1 of the periodic table are the alkali metals. Group 1 metals are shiny, malleable, and ductile. their elemental form and are stored in substances that are unreactive, such as an oil. Each atom of an alkali metal has one electron in its outer energy level

In this system, the reactants A and B will react to form the product AB until the system reaches equilibrium.

This means that the rate of the forward reaction will equal the rate of the reverse reaction. Additionally, the equilibrium constant, Kc, can be used to calculate the amount of the products and reactants at equilibrium.

The equilibrium constant, Kc, is used to calculate the relative amounts of products and reactants at equilibrium. It is calculated by taking the product of the concentrations of the products raised to their respective stoichiometric coefficients and dividing it by the product of the concentrations of the reactants raised to their respective stoichiometric coefficients. This equation looks like this:

Kc = (Products)^(Stoichiometric Coefficients) / (Reactants)^(Stoichiometric Coefficients)

For example, if we have the reaction A + B → AB, Kc can be calculated as follows:

This equation states that the equilibrium constant, Kc, is equal to the concentration of AB divided by the product of the concentrations of A and B.

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Answer: 104.85 Dollars

Explanation: You are given 101km/day and are trying to convert to Dollars/weeks which can be done with simple stoichiometry.

[tex]\frac{101 km}{1 day} * \frac{7 days}{1 week} * \frac{1 mile}{1.61 km} *\frac{1 gal}{22 miles} * \frac{3.79liters}{1gal}*\frac{1.1Euros}{1liter}*\frac{1.26Dollars}{1Euro}[/tex]

Answer:

by using glass to reflect to the sun