Chemistry solve (a) (b) (c) clearly and properly

Here are the balanced chemical equations for the reactions described:

a) Magnesium ribbon reacts with water to form magnesium hydroxide and hydrogen gas.

$$\text{Mg(s)} + \text{2H}_2\text{O(l)} \longrightarrow \text{Mg(OH)}_2\text{(aq)} + \text{H}_2\text{(g)}$$

b) Hydrogen gas burns in the presence of oxygen (from air) to form water. This is the reaction for the pop test.

$$\text{2H}_2\text{(g)} + \text{O}_2\text{(g)} \longrightarrow \text{2H}_2\text{O(l)}$$

c) Sulphuric acid reacts with potassium hydroxide in a neutralization reaction to form potassium sulfate (salt) and water.

$$\text{H}_2\text{SO}_4\text{(aq)} + \text{2KOH(aq)} \longrightarrow \text{K}_2\text{SO}_4\text{(aq)} + \text{2H}_2\text{O(l)}$$