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Basics Of Chemistry

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

Inorganic chemistry is the study of substance that do not contain the element carbon, but may contain which element?

a)

silicon

b)

oxygen

c)

hydrogen

d)

nitrogen

2.

A(n) ___________________ is a substance that cannot be broken down into simpler substance without loss of identity.

a)

compound

b)

ion

c)

mixture

d)

element

3.

Chemically joining two or more atoms in definite proportions forms a(n):

a)

acid

b)

molecule

c)

mixture

d)

solvent

4.

A(n)____________________ is a stable physical mixture of two or more substances.

a)

solution

b)

emulsion

c)

compound

d)

element

5.

A(n)_____________________ is a substance dissolved into a solution.

a)

solvent

b)

alkali

c)

solute

d)

acid

6.

Liquids that are not capable of being mixed into stable solutions are considered:

a)

emulsions

b)

suspensions

c)

miscible

d)

immiscible

7.

Solutions that contain undissolved particles that are visible to the naked eye are known as:

a)

suspensions

b)

mixtures

c)

solutes

d)

emulsions

8.

A(n)___________________________ is a mixture of two or more immiscible substances united with the aid of binder.

a)

suspension

b)

emulsion

c)

mixture

d)

solution

9.

A(n)___________________ is a substance that acts as a bridge to allow oil and water to mix or emulsify.

a)

reducing agent

b)

surfactant

c)

anion

d)

cation

10.

The tail of a surfactant molecule is oil-loving or:

a)

miscible

b)

immiscible

c)

lipophilic

d)

hydrophilic

11.

A molecule that carries an electric charge is called an:

a)

alkaline

b)

acid

c)

atom

d)

ion

12.

Alpha Hydroxy acids (AHAs):

a)

are used to exfoliate the skin

b)

feel slippery on the skin

c)

are also known bases

d)

are used to soften the hair

13.

A exothermic chemical reaction:

a)

produces a positive electrical charge

b)

produces a negative electrical charge

c)

absorb heat

d)

releases heat

14.

A substance that has a pH below 7.0 is considered to be:

a)

conbustible

b)

nuetral

c)

acidic

d)

alkaline

15.

Alkanolamines are often used in the place of ammonia because they:

a)

produce less odor

b)

are much less expensive

c)

have a better texture

d)

are much more effrctive