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 substances 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 |
The number to the bottom right of an element that tells how many atoms there are of that element | Subscript |
Group 1 a highly reactive group of metals that makes compounds with Group 7 (17) | Alkali Metals |
Group 7 (17) a highly reactive group of non-metals that makes compounds with Group 1 | Halogens |
Group 8 (18) a group of non-reactive, non-metals that are all gases at room temperature | Noble Gases |