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22 Cards in this Set
- Front
- Back
Matter |
Anything that takes up space or has matter |
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Mass |
The amount of matter in object contains |
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Substance |
A kind of matter that has uniform and definite composition |
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Physical property |
A quality or condition of a substance that can be observed or measured without changing the substances |
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Physical properties include… |
Color/solability/mass/order/hardness/density/boiling point/melting point |
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Chemical property |
The ability of a substance to undergo chemical reactions in the form new substances |
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Chemical property keywords… |
Change/Bourbon/brought/decompose/corrode |
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Indicators of a chemical change |
Color change/formation of gas/change in temp/formation of a solid(precipitation) |
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Three states of matter |
Solid/liquid/gas |
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What is the difference between gas and vapor?? |
Gas: any substance found as a gas at room temperature
Vapor: A substance in the gaseous state that is generally a liquid or solid at room temperature |
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Physical changes |
Altering substance without changing its chemical composition |
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Examples of physical change |
Cutting/grinding/bending/melting/freezing/dissolving |
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Mixtures |
Physical blend of two or more substances |
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Heterogeneous mixture |
Not uniform in composition Ex: dirt/chef salad |
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Homogeneous mixture |
Completely uniform Ex: wax/saltwater/motor oil -also called solutions |
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Phase |
A part of a system with uniform composition and properties |
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How many phases in a homogeneous mixture? |
1 |
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What is the minimum number of phases in a Heterogeneous mixture? |
2 |
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Elements |
Simplest form of matter that can exist |
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Compound |
I pure substance made of more than one element |
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In chemical symbols the first letter is always… |
Capitalized |
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In chemical symbols the second letter is… |
Never capitalized |