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Chemistry Midterms Part 3

Total questions: 19

Worksheet time: 10mins

Name
Class
Date
1.

a characteristic that can be observed without changing the identity and composition of the substance

a)

Physical Property

b)

Chemical Property

c)

Extensive or Extrinsic Properties

d)

Intensive or Intrinsic Properties

2.

ability of a substance to undergo changes to transform into a different substance. It describes how a substance reacts with another substance

a)

Physical Property

b)

Chemical Property

c)

Extensive or Extrinsic Properties

d)

Intensive or Intrinsic Properties

3.

ability of a substance to burn when in contact with flame

a)

Flammability

b)

Heat of Combustion

c)

Toxicity

d)

Oxidation

4.

the amount of energy that is released as heat when a substance is burned with oxygen

a)

Flammability

b)

Heat of Combustion

c)

Toxicity

d)

Oxidation

5.

· refers to how much a substance can damage an animal, plant cell, organ or other organism (i.e. lead, chlorine gas, HF, mercury)

a)

Flammability

b)

Heat of Combustion

c)

Toxicity

d)

Oxidation

6.

the gaining of oxygen, losing of hydrogen or losing electrons

a)

Flammability

b)

Heat of Combustion

c)

Toxicity

d)

Oxidation

7.

- the property of matter that depends on the amount of matter present

a)

Physical Property

b)

Chemical Property

c)

Extensive or Extrinsic Properties

d)

Intensive or Intrinsic Properties

8.

- The property of matter that depends on the kind of matter in a sample, not on the amount of matter present

a)

Physical Property

b)

Chemical Property

c)

Extensive or Extrinsic Properties

d)

Intensive or Intrinsic Properties

9.

single kind of matter made of only one type of molecule; have a fixed composition

a)

Pure Substances

b)

Mixture

c)

Element

d)

Compound

10.

made of two or more different substances that are not chemically joined; have a variable composition

a)

Pure Substances

b)

Mixture

c)

Element

d)

Compound

11.

made of only one type of atom; simplest form of matter

a)

Pure Substances

b)

Mixture

c)

Element

d)

Compound

12.

made of two or more atoms bonded together

a)

Pure Substances

b)

Mixture

c)

Element

d)

Compound

13.

a mixture so well mixed you cannot see the different parts

a)

Mixture

b)

Pure Substances

c)

Homogenous Mixture

d)

Heterogenous Mixture

14.

a mixture where you can see the different parts easily

a)

Pure Substances

b)

Mixture

c)

Homogenous Mixture

d)

Heterogenous Mixture

15.

used to separate mixtures of liquid and heavy insoluble solids.

a)

Decantation

b)

Evaporation

c)

Filtration

d)

Distillation

16.

it is done by continuously heating the solution leaving the solid component of the mixture

a)

Decantation

b)

Evaporation

c)

Filtration

d)

Chromatography

17.

is a process where solid-liquid mixture is allowed to pass through a filter paper, trapping the solid in it

a)

Evaporation

b)

Filtration

c)

Distillation

d)

Chromatography

18.

is the process of separating miscible liquids of boiling points such as ethyl alcohol and water

a)

Decantation

b)

Chromatography

c)

Evaporation

d)

Distillation

19.

is the method used to separate components of degrees of solubility using a moving and a stationary fluid

a)

Chromatography

b)

Distillation

c)

Filtration

d)

Decantation