Quiz. What is an acid? What is a base? Give 3 properties that acids and bases each have in general. What does the pH scale indicate? You tested an unknown substance with universal indicator and it turned red, is the substance acidic or basic?
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You may be wondering, what happens when you mix an acid and a base together? Explosion? Or nothing happens?
In fact acid-base reactions happen all the time and we call this type of reaction neutralization.
e.g. Drinking coke.
Bee sting: Bee sting venom are acidic and can be neutralized with a base such as baking soda. However wasp stings are alkaline and need acid to neutralize.
Stomach acid: Stomach acid is very strong and helps us digest food and kill germs. However, when there’s too much stomach acid it may become quite painful (such as heart burn, and no, it’s not your heart burning). Anta acid tablets can help ease the symptoms of excess stomach acid by neutralizing it. (Ring a bell about what anta acid is?)
acid + base salt + waterNeutralisation Reactions
Acids and bases are chemically the opposite of each other. Mixed together they cancel each other out, producing neutral salt and water instead.
Write the symbol equation for