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