The diagram shows ammonium chloride being heated in a test tube.
(a) The formula of ammonium chloride is NH₄Cl.
How many different elements are there in ammonium chloride?

Correct answer

3|three

3 (Nitrogen, Hydrogen, and Chlorine)

14 / 18 (78%)

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The diagram shows ammonium chloride being heated in a test tube. (a) The formula of ammonium chloride is NH4Cl. How many different elements are there in ammonium chloride?