Question

(a) Substitute formulae for names and balance the following equation
Calcium carbonate reacts with hydrochloric acid to produce calcium chloride, water and carbon dioxide gas.
(b) Write balanced chemical equation with state symbols for the following reaction
Sodium hydroxide solution reacts with hydrochloric acid solution to produce sodium chloride solution and water.

Answer 1

(a) Chemical equation:

$\bold{CaCO_{3(s)}+H C l_{(l)} \rightarrow C a C l_{(s)}+H_{2} O_{(l)}+C O_{2(g)}}$

• In this reaction, calcium chloride is the major product.
• The above given process is a neutralization process as calcium carbonate is a base and hydrochloric acid is an acid (obviously!).
• It a white salt and widely used in food preservation.

(b) Balanced chemical reaction:

$\bold{N a O H_{(s)}+H C l_{(l)} \rightarrow N a C l_{(s)}+H_{2} O_{(l)}}$

• The sodium chloride is the major product in the above reaction.
• This is an ionic compound and which is well known for the presence of sodium and chloride ions in 1:1 ratio.
• This is an edible salt and known as table salt.
• It is also used in de-icing of road during winter season.

You can get all the answers of Chapter 1 in the link below:

https://brainly.in/question/13848082

Few questions related to this chapter:

(a) Potassium chlorate (KClO3) on heating forms potassium chloride and oxygen. Write a balanced equation for this reaction and indicate the evolution of gas.

(b) Rewrite the following information in the form of a balanced chemical equation

Magnesium burns in carbon dioxide to form magnesium oxide and carbon.

https://brainly.in/question/13629273

(a) What is meant by chemical reaction? Explain with the help of an example.

(b) Give one example each of a chemical reaction characterised by

(i) evolution of a gas

(ii) change in colour

(iii) formation of a precipitate

(iv) change in temperature

(v) change in state.

https://brainly.in/question/13629277

Answer 2

Balanced Equation is Reactants = Products

Explanation:

a.) Calcium carbonate reacts with hydrochloric acid to produce calcium chloride, water, and carbon dioxide gas can be written in the equation form as -  $CaCO_3 (s) + HCl (aq) --> CaCl_2 (aq) + H_2O (l) + CO_2 (g)$

b.) Sodium hydroxide solution reacts with a hydrochloric acid solution to produce sodium chloride solution and water -

$NaOH (aq) + HCl (aq) --> NaCl (aq) + H_2O (l)$