Chemical Interactions
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16 terms
Terms | Definitions |
|---|---|
 Mass | The measure of the quantity (how much) of matter in an object |
| Dissolve | Solid particles break apart and are surrounded by the particles of water or other liquids |
| Atomic Mass | Usually a decimal number that shows the total mass of all protons, neutrons and electrons in an element |
| Energy Transfer | When energy moves from hot to cold, high to low and particles change speed |
| Closed System | A place where no particles can get in or get out |
| Kinetic Energy | The energy of motion of particles |
| Element | The building blocks of matter |
| Substance | A type of matter that has its own particle unlike any other |
| Freezing | A liquid changing into a solid |
| Melting | A solid changing to a liquid; particles break away and move over and around each other |
| Chemical Reaction | When a starting substance is changed into a new substance |
| Particle | The smallest piece of a substance that can still be called that substance |
| Compound | 2 or more elements combined to make a new substance |
| Density | The amount of particles in a certain volume or size of container. Hydrogen is the LEAST dense element of all so it floats better than any other element |
| Atomic Number | The number of protons in a element (atom) |
| Balance | An instrument that measures the mass of an object or substance |
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