Question

1. In _______ chemical equation, the number of atoms of each element is equal on both sides.

2. If heat is absorbed in a chemical reaction, '+ Heat' is written on the ________ sides.

3. Water breaks down into its
constituent hydrogen and _______.

4. In the preparation of ammonia, iron is used as a ________.

5. The substance taking part in a chemical reaction is called _______.​

Answer 1

Answer:

1. In BALANCED chemical equation, the number of atoms of each element is equal on both sides.

2. If heat is absorbed in a chemical reaction, '+ Heat' is written on the ENDOTHERMIC sides.

3. Water breaks down into its

constituent hydrogen and OXYGEN.

Answer 2

Answer:

1. In balanced chemical equation, the number of the atoms of EACH elements is equal on both sides .

2. If heat is absorbed in a chemical reaction , + HEAT is written on the reactant side( or left hand side) .

3. water (H20) break down into its constituent hydrogen (H2) and oxygen (O2)

2H20 === electricity==> 2H2 + O2

4. in the preparation of ammonia (NH3) , iron(Fe) is used as a Catalyst.

N2 + 3H2 == Fe===> 2NH3

5.the substances taking part in a chemical reaction is called reactant .

and those formed after the reaction are called product.

I hope the answer is clear to u

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