Quiz 13: WS10.2 Answers

Kowloon Tong School (Secondary Section)

F.2 Integrated Science Quiz 13: WS10.2

Words Translation (6 marks)

	Chinese term	English term
1	硫酸	Acid
2	硝酸	Lactic acid
3	氫氧化鈣	Citric acid
4	氨溶液	Ethanoic acid
5	腐蝕性	Hydrochloric acid
6	安全措施	Bitter

Fill in the Blanks (6 marks)

1        The common acids used in the laboratory include hydrochloric acid,

(1)sulphuric acid and (2)nitric acid.

2        The common alkalis used in the laboratory include sodium hydroxide solution, potassium

hydroxide solution, (3)calcium hydroxide and (4)ammonia solution.

3        The following labels tell you that many acids and alkalis are either irritant or (5)corrosive

4    We should follow the (6)safety precautions when handling acids and alkalis in the laboratory.

Challenging Questions (Bonus 2 marks)

What should we do when handling acids and alkalis in the laboratory? List TWO.

1.      Don’t use too much acids and alkalis at one time.

2.      Wear safety goggles and gloves.