Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chem:Lesson1
Matter and Energy
| Question | Answer |
|---|---|
| What is an Element? | a pure substance that cannot be separated into simpler substances by physical or chemical means |
| What is a compound? | It is a combination of two or more different elements that are chemically combined |
| What is a mixture? | A mixture is a combination of two or more pure substances in which each pure substance keeps its individual chemical properties. |
| Difference between Homogenous and Heterogeneous mixtures. | Homogenous:When the 2 substances are equally distributed. ex. Lemonade, Salt Water Heterogeneous: When the components are not equally distributed. Ex. Italian Dressing |
| Filtration | Filtration is a technique that separates the components of a mixture using a porous barrier. |
| Distillation | When you boil two substances to seperate them or to boil a substance out of the mixture. |
| Crystallization | a separation technique that results in the formation of pure, solid particles of a substance that had been dissolved in a solution. |
| Chromatography | is a technique that separates the components of a mixture on the basis of the tendency of each component to travel across the surface of another material. |
| What is Matter and what four states does it happen in? | anything that has mass and takes up space. It can be in a solid form, liquid, gas, or plasma. |
| What is weight? | weight is a measure of the gravitational pull on matter |
| Physical Properties of a substance | Extensive: Mass, Density, Melting Point, Boiling Point, Temperature Intensive: Color, Hardness, Malleability, Conductivity, Odor |
| Chemical Properties | Potential to Rust, Potential to Explode, Potential to react with acid, Potential to decompose |
| Chemical Properties | Potential to Rust, Potential to Explode, Potential to react with acid, Potential to decompose |
| physical change | A change that does not affect the basic nature of a substance |
| Chemical Properties | Potential to Rust, Potential to Explode, Potential to react with acid, Potential to decompose |
| physical change | A change that does not affect the basic nature of a substance. Ex: Melting Ice |
| Chemical Change | A change that affects the basic nature of a substance. |
| Potential Energy | measures the distance an object is from the earth’s surface |
| Kinetic Energy | the energy of motion |
| What is The Law of Conservation | The law of conservation of energy states that energy cannot be created or destroyed; the total amount of energy in the universe is constant |
Created by:
Sydbriggs
Popular Chemistry sets