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Definition
Observation made by using the senses.
ex) yellow color |
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Definition
| Observation made by measurement. |
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Term
| Two categories of matter by composition |
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Definition
1. pure - Only one kind of matter
2. Mixture - different kinds of matter |
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Term
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Definition
| Has the same fixed composition and properties. Any pure matter |
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Term
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Definition
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Term
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Definition
sugar and coffee
sugar and salt
coffee and milk |
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Term
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Definition
| Each substance is not changed |
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Term
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Definition
| substance that makes the chemical reaction go faster |
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Term
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Definition
| Break down by using electric current or through an electroylyte |
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Term
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Definition
| Chemical process that produces heat; oxidation (O2 > O) |
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Term
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Definition
May cause dizziness and loss of oxygen when inhaled.
O (oxygen atom)- Metabolic poison
O2 (oxygen molecule)- Needed for survival |
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Term
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Definition
- Burning fossil fuel
- Rusting
- Combination reaction
- Fireworks
- Cooking : baking soda with vinegar
: vinegar with egg shell |
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Term
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Definition
| Process of breathing and getting energy for animals |
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Term
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Definition
| Process of breathing and getting energy for plants |
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Term
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Definition
| Consist of two atoms in a molecule, occur naturally. |
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Term
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Definition
- O2 (oxygen)
- H2 (hydrogen)
- N2 (Nitrogen)
- F2 (Fluorine)
- Cl2 (Chlorine)
- Br2 (Bromine)
- I2 (Iodine) |
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Term
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Definition
| a combination of 2 or more metals |
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Term
Calcium
Cobalt
Copper
Carbon |
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Definition
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Term
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Definition
- Solute: the dissolved substance
- solvent: dissolving substance |
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Term
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Definition
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Term
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Definition
- simplest form of carbohydrates (c6H12O6)
- table sugar (C12H22O11) |
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Term
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Definition
| change that rearranges molecules but does not really form new substances. |
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Term
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Definition
| change that results in the formation of new substances |
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