Duelling Chemists

About this topic

Revise Chemical Reactions, including what defines a chemical change, choosing which observation is good evidence that a chemical reaction has happened, choosing which equation is balanced for magnesium burning in oxygen and what does an acid usually produce when it reacts with a metal.

This topic covers

• what defines a chemical change
• choosing which observation is good evidence that a chemical reaction has happened
• choosing which equation is balanced for magnesium burning in oxygen
• what does an acid usually produce when it reacts with a metal

Example question types

• answer a short question such as “What defines a chemical change”
• answer a short question such as “Which observation is good evidence that a chemical reaction has happened”
• answer a short question such as “Which equation is balanced for magnesium burning in oxygen”