AP Chemistry: Chemical Reactions Practice Test

Which is the name of the kind of solid substance formed in this figure?

An element plus additional element reacts to form one product is an example of which type of chemical reaction?

Magnesium reacts with hydrochloric acid to produce magnesium chloride and hydrogen gas this happens because?

Which of the following compounds will not disassociate in water?

Which type of reaction takes place in the presence of oxygen and produces carbon dioxide and water?

What is the probable product of a double-replacement reaction?

Which reaction between halogens and halide salts will occur?

When a scientist mixed two chemicals, an exothermic reaction takes place. Which of the following would be proof that the reaction was exothermic?

Increasing the concentration of a reactant in a chemical reaction will _____________.

If you combine two substances in a beaker at room temperature and the beaker feels cold to the touch, it means that the substances:

Monika dips a clean iron (Fe) nail into a test tube filled with (CuSO 4 ) solution and waits for a reaction.
Which of the following reactions does she observe?
Note: Fe is more reactive than Cu.

Ferrous sulphate crystals are heated to form ferric oxide (Fe 2 O 3 ) and the gases, sulphur dioxide (SO 2 ) and sulphur trioxide (SO 3 ).

What type is this chemical reaction?

Which of the following is an example of physical change?

Magnesium (Mg) ribbons turn white when exposed to sulphur dioxide (SO 2 ) gas. The following redox reaction takes place.

Which reactant acts as the reducing agent in this reaction?

Food containing oils and fats becomes rancid and turns to give a bad smell.
Food becomes rancid due to _________.

Sohan is having a great day doing experiments in the chemistry laboratory!
Experiment 1: He decomposes a sample of green ferrous sulphate (FeSO 4 ) crystals
into ferrous oxide (Fe 2 O 3 ) and two gases, sulphur dioxide (SO 2 ) and sulphur trioxide
(SO 3 ).
Experiment 2: In a second experiment, he decomposes limestone (CaCO 3 ) to form
quick lime (CaO), releasing carbon dioxide (CO 2 ) gas.
Help him identify the two chemical reactions.

Tina adds water to quick lime to whitewash her bedroom wall.
What is the product obtained during this combination reaction?
Note: Let’s remember, quick lime is calcium oxide (CaO).

In his laboratory, Antoine Lavoisier studies how treating lead oxide (PbO) with carbon (C) produces pure lead (Pb).

Choose the correct statements from the following.