Q.1.
How many Hydrogen atoms are in 4H2O?
-
0%
6
-
56%
8
-
11%
2
-
33%
4
Q.2.
How many Oxygen atoms are in H2O?
-
100%
1
-
0%
2
-
0%
0
-
0%
4
Q.3.
How many Magnesium atoms are in 10MgCl2?
-
83%
10
-
0%
5
-
17%
20
Q.4.
How many atoms are there TOTAL in H2SO4 ?
-
33%
6
-
0%
5
-
67%
7
-
0%
3
Q.5.
How many Sodium atoms are in 6NaCl?
-
0%
1
-
0%
12
-
100%
6
Q.6.
How many Nitrogen atoms are in (NH₄)₂CrO₄?
-
0%
1
-
50%
2
-
33%
8
-
17%
16
Q.7.
What is C2H8O ?
-
20%
Element
-
0%
Letters
-
0%
Numbers
-
80%
Compound
Q.8.
How many atoms of Hydrogen are in this compound?
-
0%
1
-
83%
2
-
17%
3
-
0%
4
Q.9.
How many Oxygen atoms are in Al₂(SO₄)₃?
-
33%
4
-
67%
12
-
0%
7
-
0%
24
Q.10.
How many Hydrogen atoms in 3(NH₄)₂CrO₄?
-
0%
4
-
0%
2
-
40%
8
-
60%
24
Q.11.
A subscript is the small number below the element symbol that tells the number of _______ of that element.
-
100%
atoms
-
0%
valence electrons
-
0%
protons
-
0%
elements
Q.12.
Which of the following is a compound?
-
0%
Co
-
0%
O2
-
0%
C
-
100%
CO2
Q.13.
How many Nitrogen atoms are in the in H2C3O4N5?
-
0%
2
-
0%
3
-
0%
4
-
100%
5
Q.14.
How many Aluminum atoms are in Al2O3?
-
0%
3
-
75%
2
-
0%
5
-
25%
1
Q.15.
How many elements are present in this compound? (Careful!)Mg2As3COHNi2
-
0%
2
-
0%
4
-
100%
6
-
0%
10
Q.16.
How many atoms are present if there is no subscript following the element symbol?
-
0%
0
-
0%
2
-
100%
only 1
-
0%
1 million
Q.17.
Are there any compounds on the periodic table?
-
0%
yes there are many
-
100%
no because only elements are on the periodic table
-
0%
I think they are?
-
0%
there is no way to tell
Q.18.
How many atoms of Oxygen are in Fe(NO3)3 ?
-
0%
6
-
33%
3
-
67%
9
-
0%
1