Steps for Balancing Chemical Equations

Q.

Barium chloride $+$Aluminium sulfate$\to$Barium sulfate$+$Aluminum chloride. Write the balanced equation for the above chemical reactions.

Q.

Write the following equation and balance them.

Barium chloride + Sodium sulphate $\to$ Barium sulphate + Sodium chloride

Q. Question 8.2
Write the balanced chemical equation for the following and identify the type of reaction:
Zinc carbonate (s) $\to$ Zinc oxide (s) + Carbon dioxide (g)

Q.

What is the balanced equation for the reaction between acetic acid and $\mathrm{NaOH}$?

Q. Question 8.4
Write the balanced chemical equation for the following and identify the type of reaction:

Magnesium (s) + Hydrochloric acid (aq) $\to$ Magnesium chloride (aq) + Hydrogen (g)

Q.

Ammonia reacts with oxygen to form nitrogen and water. Write a balanced chemical equation for this reaction. Add the state symbols for all the reatants and products.

Q.

Give balanced equation of ammonia and oxygen in the presence of a catalyst?

Q.

When the solution of substance X is added to a solution of potassium iodide, then a yellow solid separates out from the solution.

(a) What do you think substance X is likely to be ?

(b) Name the substance which the yellow solid consists of.

(c) Which characteristic of chemical reactions is illustrated by this example ?
(d) Write a balance chemical equation for the reaction which takes place. Mention the physical states of all the reactants adn products involved in the chemical equatio.

Q.

what is wrong with the following chemical equation ?

Mg + O $⟶$ MgO

Correct ana balance it

Q. What happens when aqueous lead nitrate solution reacts with potassium iodide solution? Explain the type of reaction and balance the given equation

Q.

Give balanced equation of zinc sulfide and dilute sulfuric acid?

Q.

On balancing the given equation, a, b, c and d respectively would be $aF{e}_2{O}_3+b{H}_2\to cFe+d{H}_{2}O$

1. 1, 3, 2, 3

2. 1, 2, 2, 3

3. 1, 1, 1, 1

4. 1, 1, 2, 3

Q. Assertion: In a chemical reaction, the sum of the masses of the reactants and products remain unchanged.

Reason: According to the law of conservation of mass, mass can neither be created nor destroyed.

1. Both the assertion and reason are correct and reason is the correct explanation for assertion.
2. Both the assertion and reason are correct and reason is not the correct explanation for assertion.
3. Assertion is incorrect but reason is correct
4. Both assertion and reason are incorrect

Q.

How to balance chemical equations step by step as required in CBSE board exams?

Q.

Balance the following chemical equations. [3 MARKS]

1. ${\text{HNO}}_3+{\text{Ca(OH)}}_2\to {\text{Ca(NO}}_3{)}_2+{\text{H}}_2\text{O}$
2. $\text{NaOH}+{\text{H}}_2{\text{SO}}_4\to {\text{Na}}_2{\text{SO}}_4+{\text{H}}_2\text{O}$
3. ${\text{MnO}}_2+\text{HCl}\to {\text{MnCl}}_2+{\text{Cl}}_2+{\text{H}}_2\text{O}$

Q. BALANCE THIS GIVEN EQUATION BY THE HELP OF THE ALTERNATE WAY OF BALANCING NOT THE TRADITIONAL WAY BY SHOWING THE APPROPRIATE STEPS ELABORATELY. EQN :- Ba(OH)2 + NH4Cl ---> BaCl2 + NH3 + H2O

Q.

While burning paper a reduction in mass is observed. Is it an exception to the law of conservation of mass?

Q. The questions below are related to the manufacture of ammonia.
(i) Name the process.
(ii) In what ratio must the reactants be taken?
(iii) Name the catalyst used.
(iv) Give the equation for the manufacture of ammonia.
(v) Ammonia can act as a reducing agent-write a relevant equation for such a reaction.

Q. Question 5(b)
Write word equations and then balanced equations for the reaction taking place when:
(b) Dilute hydrochloric acid reacts with magnesium ribbon

Q.

Write a balanced equation for the given reaction indicating the conditions of reaction and the physical states of reactants and products: Zinc reacts with dilute hydrochloric giving zinc chloride and hydrogen

Q.

Write the balanced equation for the reaction of potassium hydroxide with zinc.

Q.

Fill in the blanks: In a chemical reaction, the sum of the masses of the reactants and products remains unchanged. This is called ..................…

Q.

Complete and balance the following reaction :

${\mathrm{KClO}}_3\stackrel{∆}{\to }$

Q. Write balanced molecular equations for the following word equations representing different types of chemical reactions:

1. $2CaO+H_{2}O\to Ca(OH{)}_2$
2. $CaO+2H_{2}O\to Ca(OH{)}_2$
3. $CaO+H_{2}O\to 2Ca(OH{)}_2$
4. $CaO+H_{2}O\to Ca(OH{)}_2$

Q.

In a chemical reaction, the sum of the masses of the reactants and products remains unchanged. This is called ................ .

Q.

16. A chemical reaction represented by using symbols of the elements.

1. Chemical equation

2. Word equation

3. Chemical formula

4. Chemical symbol

Q.

(A) Give the balanced equation for the following reaction

(b) Silver nitrate solution and Sodium chloride solution

Q.

104. State the type of reaction taking place. Also balance the equation.

$\mathrm{Ca}+{\mathrm{O}}_2\to \mathrm{CaO}$

Q. What will be the values of the coefficients x, y and z if the given reaction is balanced?

${\text{xFeCl}}_3+\text{yMgO}\to {\text{Fe}}_{\text{2}}{\text{O}}_3+{\text{zMgCl}}_2$

1. x = 2, y = 4, z = 3
2. x = 2, y = 3, z = 3
3. x = 3, y = 2, z = 3
4. x = 3, y = 2, z = 2

Q. Consider the given chemical reaction

$Ca+H_{2}O\to Ca(OH{)}_2+H_2(\uparrow )$

The total number of water molecules required for the balancing of above chemical reaction is

1. 
   1
2. 
   2
3. 
   $\frac{1}{2}$
4. 
   3