WorksheetsNumber of elements and compounds
Total questions: 16
Worksheet time: 8mins
How many elements are found in the compound below?
NaHCO3
6
5
4
3
Check a box for each element that is found in the chemical formula below:
NaHCO3
Hydrogen
Sodium
Carbon
Cobalt
Oxygen
Which of the following is a compound?
Co
CO2
Na
H
How many different elements are in the compound?
12
3
24
6
How many elements are in this compound?
13
6
4
3
How many elements are there?
one
two
hydrogen
three
How many atoms are in the compound?
12
6
24
3
How many atoms are there in Aluminium oxide?
2
6
5
3
How many atoms are there in calcium carbonate?
2
4
5
3
How many elements are there in calcium carbonate?
2
4
5
3
How many elements are there in sodium bicarbonate?
2
4
5
3
How many atoms are there in sodium bicarbonate?
6
4
5
7
Check a box for each element that is found in the chemical formula below:
PCl3
Iodine
Carbon
Chlorine
Phosphorus
Potassium
Check a box for each element that is found in the chemical formula Borox below:
Na2B4O7
oxygen
barium
boron
Natrium
sodium
How many atoms are there in the compound below:
Na2B4O7
12
13
14
3
How many elements are there in the compound below:
Na2B4O7
12
4
13
3
