Question

A student studying the chemical properties of metals finds incomplete chemical reactions in his book, as shown: MgO + HNO3 →Which option completes the reaction?​

Answer 1

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MgO+H2O ➜ Mg(OH)2+(aq)

Magnesium oxide+ Water ➜ Magnesium hydroxide

2Mg(s) + O2(g) ➜ 2MgO(s)

Magnesium + Oxygen ➜ Magnesium oxide

Mg+ 2HCI ➜ MgCI2 + H2

Magnesium+ hydrochloric acid ➜ Magnesium chloride + hydrogen

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Answer 2

The reaction is-

$MgO+2HNO_3\rightarrow Mg(NO_3)_2+H_2O$

• Magnesium oxide reacts with nitric acid to form magnesium nitrate along with water.
• The complete reaction is-

$MgO+2HNO_3\rightarrow Mg(NO_3)_2+H_2O$

• In this reaction, one mole of Magnesium oxide reacts with two moles of nitric acid to form one mole of magnesium nitrate along with one mole of water.