In Putaiao-Science, we have been learning about Acids and Bases. Acids are any substances in a water solution that make it taste a sour bitter taste. It changes blue litmus paper red, reacts to some metals and reacts with bases to make salts. Bases are a substance that neutralises an acid by reacting to hydrogen ions. We did a couple experiments on acids and bases and how they react to each other or neutralises to make a pH of 7, a green color. Some examples of acids include:
Hydrochloric acid
Nitric acid
Sulfuric acid
And some bases:
NaOH
LiOH
Ca(OH)2
I saw when we had done the experiment on making salts that there were various examples of changing form. There was the neutralisation reaction when we added the HCl to NaOH and saw whether or not we were adding enough universal indicator or HCl to the mixture for it to fully-neutralise. After we did that we were supposed to boil it in a basin but, frankly the bell had gone and we were short on time so we were unable to get up to that stage of the experiment.
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