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Chem Final Questions

Total questions: 21

Worksheet time: 12mins

Name
Class
Date
1.

What is matter?

a)
Something that doesn't have mass or take up space
b)
Anything that has mass and takes up space
c)
Only solid objects
d)
Anything that is invisible
2.

What is a element?

a)
An element is a type of weather phenomenon
b)

An element is a fundamental building block of a webpage

c)
An element is a type of musical note
d)
An element is a type of chemical substance
e)

An element is made up from 1 type of atom

3.

Molecules are?

a)

Have more than one type of element

b)
Complex mixtures of elements
c)
Smallest units of a chemical compound
d)

Made up from more than one atom bounded together

e)

Large clusters of atoms

4.

Types of bonds that molecules have

a)
Smooth, rough, bumpy
b)
Hot, cold, lukewarm
c)

Single, double, triple bonds

d)
Solid, liquid, gas
5.

What are true about compounds?

a)

they are more than one different types of

elements bonded together.

b)

All compounds are also molecules!

(But not all molecules are compounds.)

c)

There types of bonds are; single, double, and triple bonds

6.

What is a heterogenous mixture

a)

Mixtures that are not well mixed together.

b)
A mixture that cannot be separated into its individual components
c)
A combination of two or more substances that are evenly distributed
d)
A mixture with only one type of substance
7.

What is an example of a heterogenous mixture?

a)
Pure gold
b)
Bottle of olive oil
c)
Salad or bag of mixed nuts
d)
Glass of water
8.

what is a homogenous mixture?

a)
A mixture where the components are unevenly distributed
b)
A mixture where the components are constantly changing
c)
A mixture where the components are separated into layers
d)

Mixtures that are perfectly mixed together and now uniform.

9.

Example of homogenous mixture?

a)

air

b)
Wood
c)
Concrete
d)
Mud
10.

What is a mixture?

a)
A type of animal
b)

Multiple types of elements,

compounds and/or molecules

mixed together, but not bonded

together.

c)
A type of weather phenomenon
d)
A type of musical instrument
11.

What are the signs of a chemical reaction?

a)
No change in color or temperature
b)
No formation of gas or precipitate
c)
No change in state of matter
d)

Changes in color, temperature, formation of gas, precipitation, or light

12.

What are the three fundamental chemical laws?

a)
Law of attraction, law of repulsion, and law of inertia
b)
Law of conservation of mass, law of definite proportions, and law of multiple proportions
c)
Law of gravity, law of motion, and law of thermodynamics
d)
Law of supply and demand, law of diminishing returns, and law of marginal utility
13.

What is law of conservation of mass?

a)
Mass can be destroyed in a chemical reaction
b)
Mass increases in a chemical reaction
c)
Mass can be created in a chemical reaction
d)
Mass cannot be created or destroyed in a chemical reaction.
14.

What is law of definite proportions?

a)
Chemical compound contains different elements in different proportions by mass
b)
Chemical compound always contains the same elements in different proportions by mass
c)

Chemical compound always contains the same elements in the same ratio

d)
Chemical compound always contains the same elements in the same proportions by volume
15.

What is LAW OF MULTIPLE PROPORTIONS?

a)

Elements can combine in different ratios,

but they must always be whole number

ratios.

b)
The law of multiple proportions is a concept in biology
c)

Where the molecule will always have the same proportions

d)

Elements can combine in different ratios, but they must always be a 1/2 ratio.

16.

Three characteristic of liquids

a)

Definite volume

b)

High temperature state

c)

Indefinite shape

d)

Atoms vibrate close together passing through each other

17.

Three characteristics of solids

a)

Definite volume

b)

Definite shape

c)

Atoms barley vibrate packed close together

d)

Atoms vibrate a lot and are far apart

18.

Three characteristics of gas

a)

Indefinite shape

b)

Atoms move close together

c)

Indefinite volume

d)

Atoms vibrate a lot very far apart

19.

What are isotopes?

a)
Atoms of the same element that have the same number of protons but different numbers of neutrons
b)
Atoms of the same element that have the same number of protons and neutrons
c)
Atoms of different elements that have the same number of protons and neutrons
d)
Atoms of the same element that have the same number of neutrons but different numbers of protons
20.

What are cations?

a)
Negatively charged ions formed by gaining electrons
b)
Positively charged ions formed by losing electrons
c)
Ions formed by gaining protons
d)
Neutral ions formed by gaining electrons
21.

What are anions?

a)
Negatively charged ions formed by gaining electrons
b)
Positively charged ions formed by gaining electrons
c)
Neutral ions formed by losing electrons
d)
Ions formed by sharing electrons