WorksheetsChemical reactions
Total questions: 11
Worksheet time: 6mins
How do we know a chemical change has happened?
There is a bang
Something new is made
Nothing new is made
Energy is given out during an
Exothermic reactions
Endothermic reactions
Energy is taken in during an
Exothermic reactions
Endothermic reactions
In the equation 2Na + 2H2O --> 2NaOH + H2 what are the reactants?
2Na & H2
2H2O & 2NaOH
2NaOH & H2
2Na & 2H2O
In the equation 2Na + 2H2O --> 2NaOH + H2 what are the products?
2Na & H2
2H2O & 2NaOH
2NaOH & H2
2Na & 2H2O
Is the equation 2Na + 2H2O --> 2NaOH + H2 balanced?
Yes
No
In the equation Na + Cl2 --> NaCl what are the products?
NaCl
Na + Cl2
In the equation Na + Cl2 --> NaCl what are the reactants?
NaCl
Na + Cl2
Is the equation Na + Cl2 --> NaCl balanced?
Yes
No
The reactants are found on which side of the equation?
Left
Right
The products are found on which side of the equation?
Left
Right
