Question

Balance the following chemical equations.
(a) HNO + Ca(OH), → Ca(NO.). +HO
(b) NaOH + H2SO4—Na SO4 +H2O
(c) NaCl + AgNO3- AgCl + NaNO3
(d) BaCl2 + H2SO4 → BaSO4+ HCI​

Answer 1

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a) HNO + Ca(OH), → Ca(NO.). +HO

$\sf{➝ \: \: 2HNO_3 + Ca(OH)_2 ➝ Ca(NO_3)_2 + 2H_2O}$

b) NaOH + H2SO4—Na SO4 +H2O

$\sf{➝ \: \: 2NaOH + H_2SO_4 ➝ Na_2SO_4 + 2H_2O}$

c) NaCl + AgNO3- AgCl + NaNO3

$\sf{➝ \: \: NaCI + AgNO_3 ➝ AgCI + NaNO_3}$

d) BaCl2 + H2SO4 → BaSO4+ HCI

$\sf{➝ \: \: BaCI_2 + H2SO_4 ➝ BaSO_4 + 2HCI}$

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Additional information

The chemical formula of a substance is based on the composition of that substance. It indicates the type and number of atoms of each kind present in that substance.

For example, the chemical formula is written as H2O. This means that a water molecule is formed when two Atoms of hydrogen and one atom of Oxygen.

Similarly, the formula of carbon dioxide CO2.

This means that a carbon dioxide molecule is formed by the combination of one atom of carbon dioxide and two atom of Oxygen.

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