Question

Write chemical equation for the following reaction: When solid mercury (II) oxide is heated, liquid mercury and oxygen gas are produced. By passing electric current through water, H2 and O2 are obtained as: 2H2O + electric current -> 2H2 + O2. But H2 and O2 can also be combined to form water: 2H2 + O2 -> 2H2O. The first reaction is a decomposition reaction and the second is a combination reaction. Is that statement true? Justify. The representation of a chemical reaction by using the symbols and formulas of reactants and products is called: (A) Chemical Reaction (B) Chemical Equation (C) Balanced Chemical Reaction (D) All of these. When sulfur dioxide is passed through a saturated solution of hydrogen sulfide, the following reaction occurs: SO2 + 2H2S -> 2H2O + 35. Identify the reducing agent and oxidizing agent in this reaction. When a copper strip is placed in a solution of silver nitrate, copper nitrate and silver are formed. Name the reaction. When magnesium burns in Cl2, it forms magnesium chloride. Which element is reduced?

          Write chemical equation for the following reaction:
When solid mercury (II) oxide is heated, liquid mercury and oxygen gas are produced.

By passing electric current through water, H2 and O2 are obtained as:
2H2O + electric current -> 2H2 + O2.

But H2 and O2 can also be combined to form water:
2H2 + O2 -> 2H2O.

The first reaction is a decomposition reaction and the second is a combination reaction. Is that statement true? Justify.

The representation of a chemical reaction by using the symbols and formulas of reactants and products is called:
(A) Chemical Reaction
(B) Chemical Equation
(C) Balanced Chemical Reaction
(D) All of these.

When sulfur dioxide is passed through a saturated solution of hydrogen sulfide, the following reaction occurs:
SO2 + 2H2S -> 2H2O + 35. 
Identify the reducing agent and oxidizing agent in this reaction.

When a copper strip is placed in a solution of silver nitrate, copper nitrate and silver are formed. Name the reaction.

When magnesium burns in Cl2, it forms magnesium chloride. Which element is reduced?

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Added by Nicholas D.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Madhur L

04/17/2023

Step 1

The chemical equation for the reaction when solid mercury (II) oxide is heated, producing liquid mercury and oxygen gas is: 2HgO (s) → 2Hg (l) + O2 (g) A2. Yes, the statement is true. Show more…

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Write chemical equation for the following reaction: When solid mercury (II) oxide is heated, liquid mercury and oxygen gas are produced. By passing electric current through water, H2 and O2 are obtained as: 2H2O + electric current -> 2H2 + O2. But H2 and O2 can also be combined to form water: 2H2 + O2 -> 2H2O. The first reaction is a decomposition reaction and the second is a combination reaction. Is that statement true? Justify. The representation of a chemical reaction by using the symbols and formulas of reactants and products is called: (A) Chemical Reaction (B) Chemical Equation (C) Balanced Chemical Reaction (D) All of these. When sulfur dioxide is passed through a saturated solution of hydrogen sulfide, the following reaction occurs: SO2 + 2H2S -> 2H2O + 35. Identify the reducing agent and oxidizing agent in this reaction. When a copper strip is placed in a solution of silver nitrate, copper nitrate and silver are formed. Name the reaction. When magnesium burns in Cl2, it forms magnesium chloride. Which element is reduced?

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Transcript

00:01 Hello students, let's begin with this question.

00:03 In the first part of this question we have to write down the balanced equation when the mercury 2 oxide will form the mercury and the oxygen.

00:14 So, this is the formula of the mercury 2 oxide.

00:20 So, this is in the solid it will produce the mercury liquid plus oxygen gas.

00:27 Now, in order to write down the balanced equation the number of atoms on the reactant side is equals to the number of atoms on the product side.

00:43 Now, if we see the number of atoms mercury there is a one mercury atom on the reactant side and one on the product side and oxygen one on the reactant and two on the oxygen.

00:58 So, we have to balance the oxygen.

01:00 So, here comes the two.

01:02 So, here the now the mercury 2 now there comes two atoms of mercury.

01:06 So, here comes the two mercury atoms now.

01:09 Now, this is the balanced equation.

01:11 Now, in the next part of this question we have to answer the given statement.

01:17 The first one is the when the electric current is passed through the water it will produce 2 h 2 plus o 2 and this reaction is known as the decomposition reaction whereas, when h 2 combines when 2 h 2 combines with the oxygen this will result to the formation of h 2 o.

01:45 So, this reaction is known as the combination reaction and in the statement this is given.

01:52 So, generally there is a this water is dissociated into form h 2 2 h 2 plus o 2.

02:00 So, this is the decomposition reaction and h 2 along with the combination of o 2 makes water.

02:05 So, the given statement is the true statement.

02:08 Now, in the third part of this question one statement is given.

02:12 So, the given statement is the given statement is the the representation of the chemical reaction by using the symbols and formula is known as formula, formula of reactants and products is known as.

02:36 Now, let us write down the example that is this example that 2 h 2 this is the formula of the 2 h 2 h is the hydrogen symbol for hydrogen plus oxygen this will result to the formation of the h 2 o...

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