Question

Write a complete, balanced equation for the following reactions:

e) The heating of sodium carbonate (teachers note: produces sodium oxide and carbon dioxide).
f) chromium (III) hydroxide plus sulfuric acid (teachers note: You figure out products).
g) aluminum metal plus chlorine gas (teachers note: produces aluminum chloride).

Please explain as well, thanks!

Answer 1

e) The heating of sodium carbonate to produces sodium oxide and carbon dioxide

Solution given:

Balanced chemical equation:

`\boxed{\bold{\green{Na_(2)CO_(2) +heat \rightarrow Na_(2)O +CO_(2)}}}`

when sodium carbonate is heated it decomposed and form sodium oxide and carbon dioxide

f) chromium (III) hydroxide plus sulfuric acid

Balanced chemical equation:

`\boxed{\bold{\green{2Cr(OH)_(3)+ 3H_(2)SO_(4) → Cr_(2)(SO_(4))_(3) + 6H_(2)O}}}`

When chromium (III) hydroxide react with sulfuric acid double displacement takes place and forms produce chromium(III) sulfate and water.

g) aluminum metal plus chlorine gas

`\boxed{\bold{\green{2Al(s) + 3Cl_2(g) \rightarrow 2AlCl_2 }}}`

When aluminum metal is added to chlorine gas Combination reaction takes place and forms aluminum chloride.

Answer 2

Solution given:

e) The heating of sodium carbonate to produces sodium oxide and carbon dioxide

Solution given:

Balanced chemical equation:

`\boxed{\bold{\green{Na_(2)CO_(2) +heat \rightarrow Na_(2)O +CO_(2)}}}`

when sodium carbonate is heated it decomposed and form sodium oxide and carbon dioxide

f) chromium (III) hydroxide plus sulfuric acid

Balanced chemical equation:

`\boxed{\bold{\green{2Cr(OH)_(3)+ 3H_(2)SO_(4) → Cr_(2)(SO_(4))_(3) + 6H_(2)O}}}`

When chromium (III) hydroxide react with sulfuric acid double displacement takes place and forms produce chromium(III) sulfate and water.

g) aluminum metal plus chlorine gas

`\boxed{\bold{\green{2Al(s) + 3Cl_2(g) \rightarrow 2AlCl_2 }}}`

When aluminum metal is added to chlorine gas Combination reaction takes place and forms aluminum chloride.