Preview (15 questions)
1 Question
10秒前
Q.

Sodium bicarbonate


Baryta

Baking Soda

2 Question
10秒前
Q.

Calcium Oxychloride


Bleaching powder

Laundry bleach

3 Question
10秒前
Q.

Potassium Hydroxide


Caustic Potash

Calomel

4 Question
10秒前
Q.

Magnesium sulphate heptahydrate


Dolomite

Epsom salt

5 Question
10秒前
Q.

Solid carbon dioxide


Dry ice 

Freon

6 Question
10秒前
Q.

Propane-1,2,4-triol


Chloroform

Glycerol

7 Question
10秒前
Q.

Dinitrogen monoxide


Galena

Laughing gas

8 Question
10秒前
Q.

Sodium carbonate


Washing soda

Table salt

9 Question
10秒前
Q.

Acetylsalicylic acid


Oil of wintergreen

Aspirin

10 Question
10秒前
Q.

Magnesium silicate


Talcum

Gypsum

11 Question
10秒前
Q.

Potassium nitrate


Rochelle salt

Saltpeter

12 Question
10秒前
Q.

Deuterium oxide


Quartz

Heavy water

13 Question
10秒前
Q.

Calcium sulfate


Plaster of Paris

Limestone

14 Question
10秒前
Q.

Mercury


Lunar caustic

Quicksilver

15 Question
10秒前
Q.

Calcium carbonate


Slaked lime

Marble