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CP Midterm Review

Total questions: 50

Worksheet time: 38mins

Name
Class
Date
1.

An electron is

a)

positively charged

b)

neutral

c)

negatively charged

2.

atomic number is

a)

the number of protons

b)

the number of electrons

c)

the number of neutrons

d)

the location of an atom on the periodic table

3.

Atomic Mass is the number of

a)

protons and neutrons in the nucleus of an atom

b)

protons and electrons in the nucleus of an atom

c)

neutrons and electrons in the nucleus of an atom

4.

Conservation of mass means

a)

all the atoms present before a chemical reaction are not present after

b)

atoms present before chemical reactions are present after

c)

new substances and new elements are formed in a chemical reaction

5.

An elements is

a)

a substance that cannot be split into simpler substances

b)

a substance that can be split into simpler substances

6.

A pure substance that is a compound is made out of

a)

particles of more than one type of atom

b)

particles of the same type of atom

c)

a mixture of two or more substances that can be physically separated

7.

A molecule is

a)

a singular particle of a particular element

b)

another name for an element

c)

2 or more atoms that are combined

8.

which of the statements on physical changes are correct

a)

A physical change cannot be reversed

b)

A physical change is a change in state

c)

A physical change is a change in form

d)

A physical change is where new substances are formed

9.

Signs of a chemical change include;

a)

change of colour, change of temperature, precipitate (solid) formed, gas released.

b)

change of colour, reversing back to original form, precipitate (solid) formed, gas released.

10.

Characteristics of metals on the periodic table are

a)

they are not able to be oxidised

b)

they are poor conductors of heat and electricity

c)

have free electrons

11.

In a chemical reaction, reactants contact each other, bonds between atoms in the reactants

are broken, and

a)

atoms rearrange and form new bonds to make the products.

b)

atoms remain the same and do not form new bonds to make the proudcts

12.

protons

a)

negative charge, nucleus

b)

positive charge, shells

c)

positive charge , nucleus

d)

neutral charge, nucleus

13.

neutrons

a)

no charge, shells

b)

positive charge, nucleus

c)

neutral, no charge, nucleus

d)

negative charge, shells

14.

lst shell holds

a)

2

b)

8

c)

18

d)

32

15.

2nd shell holds

a)

2

b)

8

c)

18

d)

32

16.

3rd shell holds

a)

2

b)

8

c)

18

d)

32

17.

4th shell holds

a)

2

b)

8

c)

18

d)

32

18.

same number of protons, different number of neutrons

a)

atomic number

b)

mass number

c)

isotope

d)

ion

19.

a charged atom

a)

neutral

b)

isotope

c)

ion

d)

nucleus

20.
The group number tells us how many _________ there are in an element.
a)
groups
b)
valence electrons
c)
energy levels
d)
chemicals
21.
The ________________ tells you how many energy levels are used in an element.
a)
group number
b)
atom
c)
protons
d)
period number
22.
The element Tellurium has the atomic mass of 127.60 and its atomic number is 52. How many neutrons are in the element Tellurium?
a)
179.60
b)
127.60
c)
52
d)
76
23.
The characteristics or properties of metals include
a)
shiny and solid
b)
ductile and malleable
c)
lose electrons
d)
all of the above
24.
Is the Bohr Model for the element Selenium (Se) correct?
a)
yes
b)
no
25.
Which particle does not contribute mass to the atom?
a)
Proton
b)
Neutron
c)
Electron
d)
Nucleus
26.
Most of the mass in an atom is made up of _____________________?
a)
protons and electrons
b)
protons and neutrons
c)
neutrons and electrons
d)
electrons and quarks
27.
What is a reactant?
a)
The starting substance
b)
The ending substance
28.
What is a product?
a)
The starting substance
b)
The ending substance
29.
Which of the following are NOT signs that a chemical reaction occured?
a)
the properties changed
b)
bubbles of gas formed
c)
color stays the same
d)
smells different
30.
a student mixes  apple juice, water, and cinnamon together. Did a chemical reaction occur?
a)
Yes, because the apple juice changed the color of the water.
b)
yes, because the temperature stayed the sam
c)
no, because the properties stayed the same.
d)
yes, because dissolving is always a chemical reaction.
31.
Burning is always a chemical reaction.
a)
True
b)
false
32.

Distillation is the process of separating liquids by using _____.

a)

A catalyst

b)

Precipitation and transpiration

c)

a centrifuge

d)

evaporation and condensation

33.

Which occurs when atoms link together in news ways to create a substance different from the original substances?

a)

A physical change

b)

A nuclear reaction

c)

a chemical change

d)

an inversion

34.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
35.
What atom matches this electron configuration?
1s22s22p63s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
36.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
37.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
38.
Chemical bonds form when atoms
a)
combined nuclei
b)
give up neutrons
c)
gain protons
d)
share or transfer electrons
39.
A bond that forms when electrons are transferred is called a/an
a)
ionic bond
b)
covalent bond
c)
hydrogen bond
40.

Which bond does this picture best represent?

a)

Metallic bond

b)

ionic bond

c)

covalent bond

d)

James Bond

41.

What is the ionic formula for a bond between Calcium and Phosphorus?

a)

Ca2P3

b)

Ca3P2

c)

Ca2P5

d)

P5Ca2

42.

What is the chemical formula for Lithium Nitride?

a)

Li3N

b)

LiN3

c)

NLi3

d)

N3Li

43.
What does the prefix "di" mean
a)
1
b)
2
c)
3
d)
4
44.
The name of Ni₂O₃ is
a)
nickel (II) oxide
b)
nickel (III) oxide
c)
nickle oxide
d)
dinickel trioxide
45.
The chemical formula of iron (III)bromide is
a)
FeBr
b)
Fe(III)Br
c)
FeBr₃
d)
Fe₂Br₃
46.
An ionic compound made of copper (Cu2+) and oxygen would be named
a)
copper oxygen.
b)
copper oxide.
c)
dicopper oxide.
d)
copper(II) oxide.
47.
What is the formula for aluminum fluoride?
a)
AlF
b)
Al2F3
c)
AlF3
d)
Al3F2
48.

How is the bond in F2 different from the bond in KCl ?

a)

F2 is covalent and KCl is ionic

b)

F2 is ionic and KCl is covalent

c)

F2 is ionic and KCl is ionic

d)

F2 is ionic and KCl is ionic

49.

What is the formula for magnesium phosphide?

a)

Mg3P2

b)

Mg2P3

c)

Mg2PO4

d)

Mg3(PO4)2

50.

The formula for the ionic compound of magnesium and nitrogen would be

a)

MgN2

b)

MgN

c)

Mg3N2

d)

MgN3

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