Complete the following word equations:

Hydrochloric acid $+$ Lithium hydroxide $\to$

Complete the following word equations:

Nitric acid $+$ Potassium hydroxide $\to$

Complete the following word equations:

Sulphuric acid $+$ Calcium hydroxide $\to$

Complete the following word equation:

_____ $+$ sodium hydroxide $\to$ sodium sulphate $+$ _____

Take hydrochloric acid in a test tube and place a $2 \mathrm{cm}$ long piece of magnesium ribbon into the test tube and seal the test tube with a rubber stopper. Hold the stopper so as to prevent it popping off the test tube as the gas pressure builds. Light a wooden splint, remove the stopper and place the lit splint at the mouth of the test tube.

Energy is conserved in all chemical reactions. Name one form of energy that you experience in this reaction. 

Take hydrochloric acid in a test tube and place a $2 \mathrm{cm}$ long piece of magnesium ribbon into the test tube and seal the test tube with a rubber stopper. Hold the stopper so as to prevent it popping off the test tube as the gas pressure builds. Light a wooden splint, remove the stopper and place the lit splint at the mouth of the test tube.

Write a balanced chemical equation for this reaction.