Unit 2: Vocab

Front

Energy is needed for the reaction, absorbing heat and making the container feel cold.

Back

Endothermic Reaction

Front

Energy released makes the mixture hot.

Back

Exothermic Reaction

Front

Atoms in reactants = Atoms in products.

Back

Law of Conservation of Mass

Front

Substances that start a chemical reaction, found on the left of the yields sign.

Back

Reactants

Front

Substances produced in a reaction, on the right of the yield sign.

Back

Products

Front

A subatomic particle with a positive charge.

Back

Protons

Front

Subatomic particle with a negative charge.

Back

Electrons

Front

Electron in the outermost shell of an atom, transferable or shareable with another atom, indicating charge.

Back

Valence Electrons

Front

A subatomic particle with no charge.

Back

Neutrons

Front

A nuclear reaction where a heavy nucleus splits, releasing energy.

Back

Nuclear Fission