What is a chemical element?A substance made out of carbonA mixture of different types of atomsA substance made up of only one type of atomAny substance in which the atoms are too small to see

Recall the definition of a chemical element.

An element is made up of A. a mixture of different types of atoms. B. different types of atoms that have been combined chemically. C. only one type of atom. D. different types of cells.

What does the term 'Atom' refer to in chemistry?Group of answer choicesA type of model used to represent molecular structures.A combination of two or more elements chemically bonded together.The smallest unit of an element that maintains the chemical properties of that element.The smallest particle of a compound that retains its chemical properties.

Define: What is a compound?A mixture of atoms of different elements without bondingAn element containing two or more different types of atomsA substance formed from atoms of different elements bonded togetherAny substance made out of moleculesI'm not sure

Describe what a chemical reaction is, in terms of the substances involved and the atoms that make them up.