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Phys. and Chem. Chg
Physical and Chemical Change
Question | Answer |
---|---|
A change that occurs without changing the identity of the substance | Physical Change |
A change that occurs by changing the identity of the substance | Chemical Change |
When 2 or more substance are combined physically | Mixture |
When 2 or more substance are combined chemically and can't be separated by physical means | Compound |
Parts are mixed evenly throughout (same) | Homogeneous Mixture |
Parts are uneven throughout (different) | Heterogeneous Mixture |
Type of mixture where the solute is dissolved/mixed evenly in the solvent | Solution |
The part of the solution that dissolves | Solute |
The part of the solution that the solute dissolves in | Solvent |
Smallest unit of matter | Atom |
One of the 100 or more units that make up all matter, and found on the Periodic Table | Element |
How much matter is in some thing | Mass |
The elements and compounds you start with in a reaction/equation | Reactant |
The elements and compounds that you end with in a reaction/equation | Product |
The ability to react with another element or compound | Reactivity |
The number in front of the molecule | Coefficient |