Question

*Dilute hydrochloric acid reacts with magnesium metal to form ______ salt and ______ gas releases.*

1️⃣ MgCO₃, O₂
2️⃣ MgCl₂, H₂
3️⃣ MgCl₃, H₂
4️⃣ NaCl, H₂​

Answer 1

Answer:

The correct option is 2. MgCl2, H2

Explanation:

Reaction:

2HCl + Mg ----- > MgCl + H2

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Answer 2

Answer:

(2) $MgCl_{2} , H_{2}$

Explanation:

Dilute hydrochloric acid reacts with magnesium metal to form magnesium chloride salt and hydrogen gas releases.

$2HCl + Mg - > MgCl_{2} + H_{2}$

To balance the equation on both the sides, 2 is added to hydrochloride acid meaning 2 moles of hydrochloric acid reacts with one mole of magnesium metal to form one mole of magnesium chloride salt and one mole of hydrogen gas is released in the air. Magnesium is a cation which binds with chloride which is an anion.

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