Chemical Reactions

Click on the flashcard to see the answer

What is a chemical reaction?

A process where one or more substances change into different substances.

What are the reactants in a chemical reaction?

The starting substances that react with each other in a chemical reaction.

What is a product in a chemical reaction?

The substance(s) formed as a result of a chemical reaction.

What is a synthesis reaction?

When two or more substances combine to form a single new substance.

Give an example of a decomposition reaction.

Water breaking down into hydrogen and oxygen (H2O = H2 + O2).

What is a single displacement reaction?

When a more reactive element replaces a less reactive element in a compound.

What is the reactivity series used for?

To predict how substances will react based on their reactivity.

How does a double displacement reaction occur?

Two compounds exchange ions or bonds to form different compounds.

What is the formula for magnesium oxide formation?

2 Mg + O2 → 2 MgO

What is an example of a product from a chemical reaction?

MgO (magnesium oxide) from reacting Mg and O2.

Define oxidation in terms of electrons.

The loss of electrons during a chemical reaction.

What is reduction?

The gain of electrons during a chemical reaction.

What is meant by a balanced chemical equation?

An equation in which the number of atoms for each element is equal on both sides of the equation.

What are the law of conservation of mass implications in reactions?

Mass is neither created nor destroyed in a chemical reaction.

What is a catalyst?

A substance that speeds up a chemical reaction without being consumed.