Introduction to Chemistry

Question 1

Define Chemistry

Answer 1

studies the structures, properties, compositions, and interactions between matters.

Question 2

Storage of reactive substances

Answer 2

Paraffin oil

Question 3

Storage of hydrocarbons and organic solvents

Answer 3

Shady areas away from sunlight and heat

Question 4

Storage of substances that decompose easily

Answer 4

Dark bottles

Question 5

Storage of substances with pH<5 and pH>9

Answer 5

Locked special storage cabinets

Question 6

Storage of heavy metals and toxic substances

Answer 6

Special labelled containers in a locked heat-free room

Question 7

Disposal of hydrogen peroxide

Answer 7

Diluted with water, add sodium sulphite for decomposition then dispose of in sink

Question 8

Disposal of solid waste

Answer 8

Special containers

Question 9

Disposal of organic solvents and hydrocarbons

Answer 9

Glass or plastic containers

Question 10

Disposal of substances with pH<5 and pH>9

Answer 10

Closed labelled containers

Question 11

Disposal of heavy metals and toxic substances

Answer 11

Kept in a plastic bag, evaporated in fume chamber, tied, and disposed into heavy metal waste container

Question 12

Disposal of volatile substances

Answer 12

Closed containers away from sunlight and heat