Atoms
A subatomic particle with a positive charge
What is a proton?
The change of state from solid to liquid
What is melting?
How tightly packed matter is in a substance
What is density?
The liquid that does the dissolving
What is a solvent?
A reaction that releases heat (feels hot)
What is an exothermic reaction?
A tiny subatomic particle with a negative charge
What is an electron?
The change of state from liquid to solid
What is freezing?
The orbit areas where electrons are found
What is an energy level?
The substance that is dissolved
What is a solute?
A reaction that absorbs heat (feels cold)
What is an endothermic reaction?
A subatomic particle with no charge
What is a neutron?
The change of state from liquid to gas
What is evaporation?
An electron in the outermost energy level
What is a valence electron?
How well something dissolves
What is solubility?
A change in matter which does not alter the chemical properties of the matter
What is a physical change?
A particle made up of multiple atoms bonded together
What is a molecule?
The change of state from gas to liquid
What is condensation?
A molecular bond in when electrons are shared
What is a colavent bond?
A molecule with a positive end and a negative end
What is a polar molecule?
A reaction in which atoms are rearranged to form new molecules. This is not easily reversable.
What is a chemical reaction?
The center of the atom, containing neutrons and protons
What is the nucleus?
The change of state from solid to gas
What is sublimation?
A molecular bond in when electrons are stolen, forming a positive and negative ion
What is an ionic bond?
A molecule with an even charge throughout
What is a nonpolar molecule?
1) Color Change
2) Temperature Change
3) Precipitate Produced
4) Gas Produced
What are signs of a chemical change?