Question

(a) What is a balanced chemical equation ? Why should chemical equations be balanced ?
(b) Aluminium burns in chlorine to form aluminium chloride (AlCl3). Write a balanced chemical equation for this reaction.
(c) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas. Write a balanced chemical equation for this reaction.

Lakhmir Singh Chemistry Class 10

Answer 1

Q1. M balance equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charges are the same for both the reaction and the product also known as balancing the equation balancing the reaction conservation of charge and mass.

Q2.
2 AL + 3CL2 = 2ALCL3.

Q3. K + H20 = KOH + H2 .

HELP YOU.

Answer 2

Answer:

it has an equal no of atom in their elements which are recatants and products....

Explanation:

al +cl=alcl3

k+H2o===k(OH)2+H2