Chemical Reactions
Chemical Equations
Thermal Energy
100

A property that can be observed without changing the identity of a substance

Physical Property

100

A combination of chemical symbols and numbers that represents a single unit of a substance

Chemical Formula

100

The transfer of thermal energy by direct contact

Conduction

200

A substance’s ability to change into a new substance

Chemical Property

200

The number in front of a chemical formula that shows how many molecules are present

Coefficient

200

Thermal energy is transferred through flowing matter

Convection

300

 the process called when atoms are rearranged to form new substances

Chemical Reactions

300

The term for a chemical equation that has the same number of atoms on both sides

Balanced Equation

300

The total kinetic energy of all the particles in an object

Thermal Energy

400

 the term for the original substances in a chemical reaction

Reactants

400

How do you represent the reaction between hydrogen and chlorine to form hydrogen chloride?

H2+Cl2→2HCl

400

The process by which energy is transferred by electromagnetic waves

Radiation

500

A solid produced from a chemical reaction in a solution

Precipitate

500

The principle states that matter cannot be created or destroyed

Law of Conservation of Matter

500

Give an example of a chemical process that transforms energy into thermal energy.

Melting ice cubes or burning of paper