Solutions of mercury (I) nitrate and potassium bromide are mixed

Answers

Answer 1

Answer: With that informatio you can:

1) Write the chemical equation
2) Balance the chemical equation
3) State the molar ratios
4) Predict if precipitation occurs.

I will do all four, for you:

1) Chemical equation:

mercury(I) nitrate potassium bromide mercury(I) bromide potassium nitrate
Hg2(NO3)2 + KBr → Hg2Br2 + KNO3

2) Balanced chemical equation

Hg2(NO3)2 + 2KBr → Hg2Br2 + 2KNO3

3) Molar ratios or proportions:

1 mol Hg2(NO3)2 : 2 mol KBr : 1 mol Hg2Br2 : 2 mol KNO3

4) Prediction of precipitation.

You can use the solubility rules or a table of solubilities. I found in a table of solutiblities that mercury(I) bromide is insoluble and potassium bromide is soluble, Then you can predict that the precipitation of mercury(I) bromide will occur.

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The calculation of quantities in chemical equations are called...

Answers

The calculation of quantities in chemical equations are called Stoichiometry. Stoichiometry is a branch of chemistry which deals with relative quantities of reactants and products in chemical reactions. The correct answer is 'Stoichoimetry'. I hope this helps you.

Magnesium is an alkaline earth metal with an atomic number of 12. It’s in the third row in the periodic table. Which expression shows one way to find the number of valence electrons in one atom of magnesium?

Answers

Answer:

group # = # valence electrons

group 2= 2 valence electrons

Explanation:

Mg is in group #2 and subsequently has 2 valence electrons (electrons on the outermost shell)

Which substance can not be broken down by a chemical reaction?(1) ammonia (3) methane
(2) argon (4) water

Answers

The substance that cannot be broken down by a chemical reaction is argon. This is because the substance is an element, otherwise if this is a compound, then it can be still broken down by chemical means. Ammonia, methane and water are all compounds.

The substance that cannot be broken down by chemical reaction is $\boxed{\left( 2 \right){\text{ argon}}}$ .

Further Explanation:

Substance is the pure form of matter while combination of atoms or molecules is termed as a mixture.

Types of substances:

1. Element

The simplest form of substance that cannot be further broken down by any chemical method is known as an element. Carbon, sulfur, and cobalt are some of the examples of elements.

2. Compound

When two or more different elements are held together by chemical bonds, compounds are formed. These can further be broken down into their respective constituents. Their properties are quite different from those of their constituent elements. NaCl, ${\text{C}}{{\text{H}}_{\text{4}}}$ and ${{\text{H}}_{\text{2}}}{\text{O}}$ are examples of compounds.

(1) Ammonia consists of one nitrogen and three hydrogen atoms so it is a compound. Therefore it can be broken down by chemical reactions.

(2) Argon is an element so it is the simplest form in which it can exist. Therefore it cannot be broken down by chemical reactions.

(3) Methane consists of one carbon and four hydrogen atoms so it a compound. Therefore it can be broken down by chemical reactions.

(4) Water consists of one oxygen and two hydrogen atoms so it is a compound. Therefore it can be broken down by chemical reactions.

Learn more:

Which sample is a pure substance? brainly.com/question/2227438
Which is a characteristic of a mixture? brainly.com/question/1917079

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Elements, compounds, and mixtures

Keywords: substance, methane, argon, ammonia, water, element, compound, chemical reactions, broken down, simplest form, NaCl, CH4, carbon, sulfur, cobalt.

Describe the chemical process of fermentation.

Answers

Fermentation is a metabolic process. The molecules like glucose are breaks down anaerobically.

What is Fermentation ?

Fermentation is a metabolic process which converts sugars to alcohol, acids or gases. Fermentation is observed in bacteria,yeast cell and also in the muscle of animals. An Example is lactate fermentation which produces lactic acid.

What is Chemical process of fermentation ?

Fermentation is a chemical process in which molecules like glucose are breaks down anaerobically. Fermentation is chemical change. In chemical changea new substance is formed.

Thus, from above conclusion we can say that Fermentation is a metabolic process. The molecules like glucose are breaks down anaerobically.

Learn more about the Fermentation here: brainly.com/question/546578
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Answer:

Fermentation is a chemical process in which complex organic molecules are broken down into simpler compounds like ethanol. This process is catalyzed by certain enzymes. Enzymes are complex chemical catalysts produced by living cells. The sugars used for fermentation are often formed by enzymatic decomposition of starches from corn, potatoes, rice, or grain.

Explanation:

Gases, fluids, and other solids in contact with a moving object will produce ____ due to friction. heat flow current electrical energy radiation

Answers

The correct answer among the options given is the first option. Gases, fluids, and other solids in contact with a moving object will produce heat flow due to friction. This is called heat transfer where heat energy is transferred from the high to low. As the particles in a substance collide, energy is transferred and others are dissipated in the form of heat.

Gases, fluids, and other solids in contact with a moving object will produce heat flow due to friction. This is called heat transfer where heat energy is transferred from the high to low.

Nuclear fusion differs from nuclear fission because nuclear fusion reactions(1) form heavier isotopes from lighter isotopes
(2) form lighter isotopes from heavier isotopes
(3) convert mass to energy
(4) convert energy to mass

Answers

Nuclear fusion is the forceful collision of two nuclei to make a larger one
So the answer is (1)
(2) Would be nuclear fission
For (3) and (4), you can't convert energy from anything that isn't another form of energy, and you can't convert it in to anything that isn't another from of energy

Nuclear fusion differs from nuclear fission because nuclear fusion reactions. Nuclear fusion forms heavier isotopes from lighter isotopes. Nuclear fission forms lighter isotopes from heavier isotopes. therefore, the correct options are option 1,2.

Nuclear fission gets a nuclear process in which the atom's nucleus is divided into smaller nuclei by being blasted with low-energy neutrons. In this process, a large quantity of energy is released. Nuclear fission processes are employed for nuclear power reactors due to their simplicity and high energy output. When multiple atoms unite to produce one heavier nucleus, the process is known as nuclear fusion. In comparison to the energy produced throughout the nuclear fission reaction, a tremendous quantity of energy is released during this process.

To know more about nuclear fusion and nuclear fission, here:

brainly.com/question/13090058

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