The chemical symbol for gold is Gd.

Choose 1 answer

True

False

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Which of these chemical formulae contain 3 different atomsl? Choose 1 answer

Choose 1 answer

H2O

NaOH

CH4

NH3

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Which of these best describes what a chemical formula tells us.

Choose 1 answer

How large the substance becomes when heated.

The elements that a substance is made of and how many of each there are

Whether a substance is a solid, liquid or gas.

How long the substance has been discovered for.

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Which of these terms mean the same as 'table salt'?(choose all that apply)

Choose 2 answers

NaCl

Sodium Hydroxide

NaTs

Sodium Chloride

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Answer incorrect

Look at the slide below to work out the answer.