Thurs Dec 19th

Front

What does 'thermic' mean?

Back

Heat

Front

What is the little number after an element in a chemical equation called?

Back

Subscript

Front

What type of chemical reaction has this process? Reactants ---> Products + energy

Back

Exothermic

Front

What is the term for the outermost electrons in an atom?

Back

Valence electrons

Front

What is the process called when energy is absorbed in a chemical reaction?

Back

Endothermic reaction

Front

What is the term for a substance that speeds up a chemical reaction without being consumed?

Back

Catalyst

Front

What is the law that states mass is neither created nor destroyed in a chemical reaction?

Back

Law of Conservation of Mass

Front

What is the term for a chemical change that releases energy in the form of heat?

Back

Exothermic reaction

Front

What is the difference between a coefficient and a subscript in a chemical equation?

Back

A coefficient indicates the number of molecules, while a subscript indicates the number of atoms in a molecule.

Front

What is the term for the number of protons in the nucleus of an atom?

Back

Atomic number