Teacher's Resources

Click the correct answer (True or False).

The law of conservation of mass states that matter is neither created nor destroyed.

True

False

Click the correct answer.

The symbol Na of sodium is derived from its Latin name. Which of the following is the Latin name?

Nallium

Natium

Natrium

Aurum

Click each box on the left and then click the matching box on the right.

Match the columns by dragging

Ammonium

Hydrogen carbonate

Nitrite

Sulphate

Bisulphite

(NH₄)⁺

(HCO₃)^–

(NO₂)^–

(SO₄)^2–

(HSO₃)^–

Click the correct answer.

The of an atom is a whole number that varies from 1 to 8.

valency

cation

radical

ion

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