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Intro to Chemistry
Chpter 1- Science
| Question | Answer |
|---|---|
| Matter | Anything that has mass and takes up space |
| Mass | amount of matter in an object |
| Volume | the amount of space matter occupies |
| Irregular Object | Non Geometric Shapes |
| Regular Object | Geometric shapes |
| Density | measure of the mass of a material in a given volume |
| Mixture | made of two or more substances together in the same place, but the atoms are not chemically bonded |
| Substance | A single kind of matter that is pure, meaning it always has the same makeup, or composition |
| Homogeneous Mixture | evenly mixed so you can't see the different parts of the mixture |
| Atoms | basic particle from which all elements are made |
| Molecules | group of two or more atoms held together by chemical bonds |
| Physical Bond | Force attraction that holds atoms |
| Chemical Bond | force of attraction between two atoms |
| Chemical Formula | a formula in which a compound is represented. it shows the elements in the compound and the ratio of atoms. (ex. C3H8) |
| Element | A substance that cannot be broken down into any other substances (physically or chemically) |
| Compound | Two or more elements chemically combined in a set ratio |
| Three States of Matter Are... | Solid, Liquid, Gas |
| Physical Properties | a characteristic of a substance that can be observed without changing it into another substance |
| Chemical Properties | a characteristic of a substance that describes its ability to change into different substances |
| Physical Change | Change in appearance, but does not change the substance |
| Chemical Change | a change in matter that produces one or more new substances |
| Law of Conversation of Mass | the fact that matter is not created or destroyed in any chemical or physical change |
| Energy | Capacity to move |
| Endothermic Change | a change in which energy is absorbed |
| Exothermic Change | a change in which energy is released |
| Density of water is ____________ | 1 g/cm3 |
| Density formula is _____________ | mass/volume |
| How to Find Mass... | m/s2 |
| How to Find Volume... | length x width x height |
| The difference between a mixture and a compound is ________ | mixture keeps its own properties. The compound has properties different from the elements it contains. |
| Heterogeneous Mixture | see the different parts of the mixture, can be easily seperated |
| Density of Regular Object | find the mass |
| Density of Irregular Object | find mass |
Created by:
Ionah _Studies
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