Chemical Compounds and Reactions

Front

What are the basic building blocks of matter?

Back

Atoms are the basic building blocks of matter.

Front

What is a chemical compound?

Back

A chemical compound is a substance formed when two or more different elements combine in a fixed ratio.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is a chemical reaction?

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

Front

What are reactants in a chemical reaction?

Back

Reactants are the starting substances that undergo a chemical change.

Front

What are products in a chemical reaction?

Back

Products are the substances that are formed as a result of a chemical reaction.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.

Front

What is the role of water in chemical reactions?

Back

Water can act as a solvent, reactant, or product in many chemical reactions.

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.