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ch.vs. ph. changes
science class vocab.
Question | Answer |
---|---|
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 4. Solute- the part of the | . Solution |
the part of the solution that dissolves | Solute |
the part of the solution that the solute dissolves in | Solvent- |
a change that occurs without changing the identity of the substance | Physical change |
a change that occurs by changing the identity of the substance 8. Mixture- when 2 or more 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- |
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 |