Question

to heat lead nitrate 1.no.of reactant and 2.no.of product and 3.type of chemical reaction​

Answer 1

$\bf\huge{Answer:}$

Heating of lead nitrate:

$\bf{2Pb(NO_3)_2\:(s) \longrightarrow 2PbO\:(s) +4NO_2\:(g) +O_2\:(g) }$

1. No of reactants

• One (Lead nitrate)

2. No of products

• In the above reaction, there are 3 products. (Lead Monoxide, Nitrogen dioxide and oxygen.)

3. Types of Chemical reaction

• Thermal decomposition reaction.

$\bf\huge{ Additional\: information :}$

• When we heat lead nitrate, it forms yellow coloured lead monoxide and brown flames of nitrogen dioxide.

• Decomposition of colourless lead nitrate is an endothermic reaction.

Thermal decomposition reaction : It is a type of decomposition reaction in which reactant splits into two or more product by using energy in the form of heat.

Answer 2

$\huge\bf{Answer :}$

$\sf\underbrace{Chemical \: Reaction \: :-}$

$\sf\red {2Pb(NO_3)_2(s) \: \longrightarrow \: 2PbO(s) \: + 4NO_2(g) \: + O_2(g)}$

$\sf\underbrace{Number \: of \: reactants \: :-}$

There is only 1 reactant involved in this chemical reaction, that is, Lead Nitrate.

• Formula - $\bf{2Pb(NO_3)}$

$\sf\underbrace{Number \: of \: products \: :-}$

Three products are formed at the end of the reaction.

These are :-

1. Oxygen
2. Lead Monoxide, and
3. Nitrogen Oxide

$\sf\underbrace{Type \: of \: chemical \: reaction \: :-}$

The reaction that occurred here is termed as Thermal Decomposition Reaction.

$\huge\bf{Extra\: Information :}$

Q. What is a reactant ?

Ans. A reactant is any substance that participates in a chemical reaction, and after the occurrence of chemical reaction, it gets converted into a product.

Take for example, when hydrogen and oxygen chemically combines to form water, then hydrogen and oxygen are reactants.

Q. What is a product ?

Ans. A product is that substance that, earlier was a reactant but now, has changed into some other substance having entirely different properties that reactant.

Take for example, between the reaction between calcium and oxygen, the substance that is formed at the end, which is calcium oxide is a product.

Q. What is Thermal decomposition reaction ?

Ans. It is a type of decomposition reaction in which a substance decomposes itself on the application of heat energy. This reaction is recognised endothermic, since heat is required is required for the breakdown.