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Quizizz Team Tie breaker

Total questions: 20

Worksheet time: 25mins

Name
Class
Date
1.

10 L of Hydrogen Gas ( H2H_2 )

a)

>> Greater than one mole

b)

== Equal to one mole

c)

<< Less than one mole

2.

2.02 grams of Hydrogen Gas ( H2H_2 )

a)

>> Greater than one mole

b)

== Equal to one mole

c)

<< Less than one mole

3.

6.00 x 10236.00\ x\ 10^{23} atoms

a)

>> Greater than one mole

b)

== Equal to one mole

c)

<< Less than one mole

4.

6.42 x 10236.42\ x\ 10^{23} Molecules

a)

>> Greater than one mole

b)

== Equal to one mole

c)

<< Less than one mole

5.
What is the mass of one mole of aluminum?
a)
27 g
b)
13 g
c)
54 g
d)
14 g
6.
What is the molar mass of CO2?
a)
12
b)
16
c)
32
d)
44
7.
Molar mass is in units of ________.
a)
grams
b)
grams/mole
c)
mole
d)
moles/gram
8.

Calculate the molar mass of NH4NO2

a)

50 g/mol

b)

60 g/mol

c)

64 g/mol

d)

78 g/mol

9.

In a double covalent bond

a)

one atom has more than 8 valance electrons

b)

one atom loses a pair of electrons

c)

two atoms share two pairs of electrons

d)

two atoms share 8 electrons

10.

Select all the examples of elements.

a)

Oxygen- O

b)

Salt- NaCl

c)

Hydrogen- H

d)

Water- H2O

e)

Gold- Au

11.
Which of the following is considered an empirical formula?
a)
CH3COOH
b)
C6H12O6
c)
H2O
12.

How many molecules are in 2.5 mol of NaCl?

a)

1.5 x 1024 molecules

b)

1.5 molecules

c)

4.15 molecules

d)

1.5 x 1023 molecules

13.
A formula with the lowest whole # ratio of elements in a compound is called
a)
Molecular Formula
b)
Chemical Formula
c)
Empirical Formula 
d)
Distance Formula
14.

What is the empirical formula for C4H6?

a)

CH

b)

CH3

c)

C2H3

d)

C4H6

15.

What is the empirical formula for N2S3?

a)

NS

b)

N3S2

c)

N2S3

d)

N1S1.5

16.
If I gain electrons I become
a)
Positive because I've added to my atom
b)
negative because I've added electrons
c)
same because i'm balanced
d)
equal because now I have electrons
17.
What is the molar mass of C2H4O2?
a)
40g
b)
50g
c)
60g
d)
68g
18.
Which has more molecules?
a)
1 mole H2O
b)
1 mole Al(OH)3
c)
1 mole NaCl
d)
There are all the same
19.
How many moles of carbon atoms are there in 5g of carbon?
a)
60 mol
b)
17 mol
c)
0.42 mol
d)
7 mol
20.
How many molecules are there in 5.9 moles of NaCl?
a)
3.5x1024molecules
b)
9.79x10-24molecules
c)
1.02x1023molecules