ATS KS3 C3: Chemical Reactions

Front

True or false? Chemical reactions are easily reversible

Back

False

Front

What type of reaction occurs when compounds are broken down into simpler substances?

Back

Decomposition

Front

magnesium + oxygen --> magnesium oxide. If you started with 5g of magnesium and 2.5g of oxygen, what mass of magnesium oxide would be produced?

Back

7.5g

Front

What is the conservation of mass?

Back

Mass of reactants = mass of products

Front

Which is NOT an example of something you could observe that would suggest a chemical reaction is taking place?

Back

Melting

Front

What is a chemical reaction?

Back

A process where substances (reactants) are transformed into new substances (products).

Front

What is a reactant?

Back

A substance that undergoes change in a chemical reaction.

Front

What is a product?

Back

A substance that is formed as a result of a chemical reaction.

Front

What is combustion?

Back

A chemical reaction that occurs when a substance reacts with oxygen, producing heat and light.

Front

What is oxidation?

Back

A chemical reaction that involves the loss of electrons or an increase in oxidation state.