WorksheetsWriting Chemical Formulae
Total questions: 16
Worksheet time: 4mins
Chemical Reactions....
Are happening around us all the time
Involves combining or breaking down substances to give us a new substance
Require reactants and products
All of the above
The substances that react together are called the...
Products
Reactants
Surfactants
Which of these is NOT an a sign that a reaction has occured?
Emission of light
Production of gas bubbles
Temperature does not change
Change of colour
Is is formula correct: reactant + reactant = product + product
True
False
What is the right part of a chemical equation called? H2 + O → H2O
Products
Yields
Reactants
What is the left part of a chemical equation called? H2 + O → H2O
reactants
products
yields
A compound is made up of
one or more different atoms
one or more atoms
one or more mixtures
one or more solutions
Element or compound? Au (Gold)
element
compound
Element or compound? H2O
element
compound
Element or compound? O2
element
compound
How many hydrogen atoms are in this chemical formula?
1
4
2
3
How many oxygen atoms are in this chemical formula?
6 oxygen atoms
2 oxygen atoms
3 oxygen atoms
4 oxygen atoms
How many iron atoms are in this chemical formula?
2
6
4
8
How many elements are in C6H12O6?
1
2
4
3
How many O's are in Al₂(SO₄)₃?
4
12
7
24
What is the state of Hydrogen in this formula?
solid
liquid
gas
aqueous
