Gas Tests and Neutralisation | Baamboozle - Baamboozle

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Why might antacids sometimes make people feel bloated?

Because carbon dioxide gas is released when carbonates react with stomach acid.

What should we observe when there is Hydrogen gas present?

A lit splint should make a squeaky pop sound when it enters the test tube

Why must students wear goggles when handling dilute hydrochloric acid in class?

Because it is an irritant (mildly corrosive) that can harm the eyes if splashed.

Why do we use a glowing splint and not a lit splint when testing for oxygen?

We can't see the splint re-light if it is already lit

In a neutralisation reaction, which are usually the two products made?

salt and water

Which gas are we testing for here?

Oxygen

Which gas are we testing for when we check if a glowing splint re-lights?

Oxygen

What evidence do we see when there is Carbon Dioxide present?

Water turns milky white/cloudy

What pH do you expect when you mix the right amount of Magnesium Carbonate (alkaline) with Hydrochloric Acid?

pH 7

Universal indicator turns which colour in a strong acid?

red

Why might a farmer add lime (calcium carbonate) to soil?

To neutralise acidic soil and bring the pH closer to neutral for better crop growth.

Which gas is this test for?

Carbon Dioxide

Which gases can we test for using pH paper?

Ammonia and Chlorine