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WorksheetsCompounds and Chemical formulas
Total questions: 10
Worksheet time: 6mins
Carbon monoxide is made of one carbon atom and one oxygen atom. What is it's chemical formula?
CO
CO2
C1O1
C202
How any hydrogen atoms are in water? (H2O)
1
2
3
4
Carbon dioxide has the chemical formula CO2. How many carbon and oxygen atoms are in carbon dioxide?
1 carbon, 1 oxygen
2 carbon, 1 oxygen
1 carbon, 2 oxygen
2 carbon, 2 oxygen
Identifiy the elements in iron bromide.
Iron and iodine
Iron and flourine
Iron and chlorine
Iron and bromine
Identify the compound in the list below
Carbon dioxide
Oxygen
Carbon
Salt and water
How many carbon atoms are in glucose? (C6H12O6)
(a)
Lithium bromide is made of two elements. Lithium and?
(a)
Magnesium was burned in oxygen. Write down the name of the compound formed.
(a)
Sodium hydroxide is made of three elements. Sodium, hydrogen and ?
(a)
Glucose has the formula C6H12O6. What is the ratio of hydrogen to oxygen atoms?
1:1
1:2
2:1
2:2
