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unit 5 Basics of Chemistry

Total questions: 25

Worksheet time: 1hrs 15mins

Name
Class
Date
1.

Minerals are ___ substances

a)

Inorganic

b)

Unorganic

c)

Organic

d)

Liquid

2.

__is/are anything that occupies space, has mass, and has physical and chemical properties

a)

Liquid

b)

Organic

c)

Inorganic

d)

Matter

3.

Compound molecules are chemical combinations of ___ or more atoms of different elements

a)

1

b)

4

c)

2

d)

3

4.

In what state does matter have volume but no definite shape

a)

Gas

b)

Volume

c)

Liquid

d)

Matter

5.

___and reduction are referred to as a redox reaction

a)

Matter

b)

Dioxitation

c)

Liquid

d)

Oxidation

6.

Chemical reactions that relase ___ are called exothermic

a)

Heat

b)

Oxidation

c)

Water

d)

Matter

7.

An example of a ___ substance is aluminum foil

a)

Liquid

b)

Pure

c)

Matter

d)

Oxidation

8.

A physical mixture is a combination of ___ or more substances united physically in any proportions without a fixed composition

a)

5

b)

3

c)

2

d)

4

9.

An example of a ___ mixture is concrete

a)

Matter

b)

Non physical

c)

Liquid

d)

Physical

10.

Substances that are ___ are easy to mix together

a)

Miscible

b)

Oxidation

c)

Inorganic

d)

Liquid

11.

A ___ is any substance that is dissolved into a solvent to form a solution

a)

Physical

b)

Inorganic

c)

Substance

d)

Solute

12.

An example of an emulsion is ___

a)

Mayonnaise

b)

Inorganic

c)

Substance

d)

Lipophilic

13.

The oil loving tail of a surfactant molecule is called ___

a)

Substance

b)

Inorganic

c)

Mayonnaise

d)

Lipophilic

14.

Hard water may be softened by ___ water softening units or by adding sodium carbonate

a)

Dioxide’s

b)

Aqueous

c)

Distillation

15.

An atom or molecule that carries an ___ charge is called an iron

a)

Current

b)

Ionic

c)

Vacum

d)

Eletrical

16.

Only ___ solitions have Ph scale

a)

Alkais

b)

Ionic

c)

Aqueous

d)

Cell

17.

___have a ph above 7.0 and soften and swell the hair

a)

Alkais

b)

Ionic

c)

Aqueous

d)

Cell

18.

Which type of shampoo washes away excess oiliness while keeping the hair from drying out

a)

Neutralizing shampoo

b)

Medicated shampoo

c)

Balancing shampoo

d)

Instant conditioners

19.

Which type of shampoo helps to rebalance and restore the Ph level of the hair by removing unwanted residues that remain in the hair after chemically relaxing the hair

a)

Neutralizing shampoo

b)

Medicated shampoo

c)

Balancing shampoo

d)

Instant conditioners

20.

Which type of shampoo contains antifungal agents to supress the growth of malassezia

a)

Neutralizing shampoo

b)

Medicated shampoo

c)

Balancing shampoo

d)

Instant conditioners

21.

which type of conditioners are also known as rinse out conditioners

a)

Neutralizing shampoo

b)

Medicated shampoo

c)

Balancing shampoo

d)

Instant conditioners

22.

___are made by mixing plant oils or animal fats with strong alkaine substances

a)

Dissenfectants

b)

Anti bacterials

c)

Soaps

d)

Oils

23.

The ingrident in moisturizing creams that create a ___ that allows the natural water and oil of the skin to accumulate in the tissues

a)

Spraying

b)

Cut

c)

Line

d)

Barrier

24.

A hydrogen peroxide solution is used as a bleaching agent for the hair in solutions ____ volume

a)

60 to 80

b)

20 to 40

c)

0 to 20

d)

80 to 100

25.

___ are a special type of oil that does not cause comedones

a)

Inorganic

b)

Silicones

c)

Aqueous

d)

Oxides