Question

q.1 write the equation for the reaction of magnesium with hcl. mg + 2hcl -> mgcl2 + h2

Explanation:

Step1: Check the reactants and products

Magnesium (\(Mg\)) reacts with hydrochloric acid (\(HCl\)) to form magnesium chloride (\(MgCl_{2}\)) and hydrogen gas (\(H_{2}\)).

Step2: Balance the equation

Count the number of atoms of each element on both sides.

• For \(Mg\): 1 atom on both sides.
• For \(Cl\): 1 atom on the left (\(HCl\)) and 2 atoms on the right (\(MgCl_{2}\)). So, put a coefficient of 2 in front of \(HCl\).
• For \(H\): 2 atoms on the left (after putting coefficient 2 in front of \(HCl\)) and 2 atoms on the right (\(H_{2}\)).

The balanced chemical equation is \(Mg + 2HCl
ightarrow MgCl_{2}+H_{2}\uparrow\)

Answer:

\(Mg + 2HCl
ightarrow MgCl_{2}+H_{2}\uparrow\)