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Major Mastery - make one take one

Total questions: 22

Worksheet time: 2hrs 58mins

Name
Class
Date
1.

Which of the following statements is incorrect?

a)

Halogens are colorful and corrosive nonmetals and are diatomic molecules in nature

b)

Noble gases are the last group of the periodic table and are inert gases

c)

Alkali metals form the first group of the periodic table while alkaline-earth metals form the second

d)


None of the above

2.
What are the two structures found in the atom's nucleus?
a)
Electrons and Neutrons
b)
Protons and Electrons
c)
Protons and Neutrons
d)
Neutrons and Electrons
3.
What does the atomic number tell you?
a)
Number of Protons
b)
Number of Neutrons
c)
Sum of protons and neutrons
4.

How many neutrons are in the element shown?

a)

4

b)

9

c)

5

d)

13

5.
What is the location of the electron?
a)
the free floating negatively charged electron cloud
b)
the free floating positively charged electron cloud
c)
the very dense positively charged electron orbital
d)
the positively charged very dense nucleus
6.
In a stable atom the amount of electrons is electron is equal to
a)
neutrons
b)
protons
c)
atomic mass
d)
neutrons + protons
7.
What is the charge of the electron
a)
positive
b)
no charge
c)
negative
d)
neutral
8.
What is the relative mass of the electron
a)
same mass as proton
b)
larger mass than protons and neutrons
c)
less than 1amu
d)
electrons don't have a mass
9.

Which is the correct name for the compound (NH4)2SO4?

a)

nitrogen hydrogen sulfate

b)

nitrogen hydrosulfate

c)

ammonium (II) sulfate

d)

ammonium sulfate

10.
Which is the correct name for the compound HNO2?
a)
hyponitrous acid
b)
hydronitrogen dioxide
c)
nitrous acid
d)
hydronitric acid
11.
Which is the correct name for the compound N2O4?
a)
tetranitrogen dioxide
b)
dinitrogen tetroxide
c)
dinitrogen quadoxide
d)
nitrogen oxide
12.
Which is the correct formula for the compound chromium (II) nitrate?
a)
(Cr)2NO3
b)
Cr2NO3
c)
CrNO2
d)
Cr(NO3)2
13.
Why do atoms share electrons?
a)
To attain the electron configuration of a noble gas.
b)
To become ions and take a charge
c)
to increase the mass
d)
it's a nice thing to do.
14.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
15.

How many electrons are shared in a single covalent bond?

a)

2 pairs

b)

4

c)

2

d)

1

16.

What is Avogadro's number?

a)

6.02 x 1023

b)

1 mole

c)

600 million

d)

6.02

17.

How many moles are in 6.02 x 1023 molecules of H2O?

a)

1 mole

b)

2 moles

c)

6.02 moles

d)

602000000000000000000000 moles

18.

How many molecules are there in 31.8 moles of water?

a)

5.28 x 10-23 molecules

b)

1.91 x 1025 molecules

c)

5.28x 10-25 molecules

d)

1.91 x 1023 molecules

19.
What is essential for a combustion reaction to begin?
a)
Carbon dioxide
b)
Fuel 
c)
Fuel, oxygen and heat
d)
Water and oxygen
20.
Which of the following shows the correct way to balance the chemical equation?
Fe + O2 -> Fe2O3
a)
4Fe + 3O2 -> 2Fe2O3
b)
2 Fe + 3O2 -> Fe2O6
c)
4 Fe + O6 -> 2Fe2O3
d)
None of the options are correctly balanced.
21.
Balance this equation...
HgO --> Hg + O2
a)
It is balanced 
b)
2HgO --> Hg + O2
c)
2HgO --> 2Hg + O2
d)
I don't know...Oh well!
22.
Ice melting
a)
Chemical Change
b)
Physical Change

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