Font size
S
M
L
XL
Worksheetschemistry 11th @2
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
What is the mass of one mole of aluminum (Al)?
a)
27 g
b)
13 g
c)
54 g
d)
14 g
2.
Calculate the molar mass of KOH.
a)
28 g/mol
b)
56 g/mol
c)
84 g/mol
d)
112 g/mol
3.
What is the molar mass of CO2?
a)
22
b)
16
c)
32
d)
44
4.
What is the molar mass of AuCl3?
a)
96 g
b)
130 g
c)
232.5 g
d)
303.3 g
5.
How many electrons does an atom of Krypton have?
a)
36
b)
83.798
c)
47.798
d)
119.798
6.
What is the atomic mass of Hydrogen?
a)
1.008
b)
2
c)
1
d)
0
7.
How many neutrons are in Potassium
a)
19
b)
20
c)
39
d)
58
8.
How many neutrons are in Gold
a)
118
b)
79
c)
197
d)
276
9.
How many protons are in Gold
a)
79
b)
197
c)
118
d)
276
10.
What is the correct formula for this molecule?
a)
Si4F
b)
SiF4
c)
SiF
d)
Si4F4
11.
How many valence electrons does Argon have
a)
5
b)
11
c)
8
d)
6
12.
How many valence electrons does Sodium have
a)
1
b)
8
c)
7
d)
3
13.
How many valence electrons does Carbon have
a)
1
b)
5
c)
8
d)
4
14.
What is the octet rule?
a)
Elements can only have 8 electrons in its outermost shell
b)
The elements must form an octopus like structure
c)
Is the outermost electrons
d)
Elements can only have 6 electrons in its outermost shell
15.
What are valence electrons?
a)
The innermost electrons
b)
The outermost electrons
c)
The bonds between two atoms
d)
When electrons are balanced
Reset
