Question

Write balance chemical equation for the following reaction: (a) hydrochloric acid reacts with calcium hydroxide . (b) calcium hydroxide reacts with sulphuric acid

Answer 1

Ans: The given equations are balanced equations. There is no need of balance these equations.
Follow these basic steps to balance a chemical equation
a) Write down your given equation.
b) Write down the number of atoms that you have on each side of the equation.
c) Balance atoms of each element on both sides of the reaction.
d) Always leave hydrogen and oxygen for last to balance.
e) Balance the hydrogen atoms lastly followed by balancing of oxygen atoms.

1. Ca(OH)2 (s) + 2HCl (aq) = CaCl2 (aq)+ 2H2O (l)

2.Ca(OH)2(aq)+H2SO4(aq)—→ CaSO4(s)+2H2O(l)