Term
| What are the phases of matter? |
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Definition
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Term
| what are some physical changes? |
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Definition
| tearing, ripping, freezing, and melting |
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Term
| what are some chemical changes |
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Definition
| bubbling, blowing up, fizzing, or color changes |
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Definition
| material with a constant composition |
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Definition
| material that doesnt have constant composition |
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Definition
| any material that contains only one phase |
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Definition
| material that has more then one phase and can be physcially seperated |
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Definition
| substance made up of only one atom |
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Definition
| substance made up of more then one type of atom. |
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Definition
| parts of solution are physcially not chemically combined. type of special homogeneous material |
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Definition
| made up of 2 or more substances that are physically combined. |
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Definition
| seperate liquids from eachother |
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Term
| The freezing of water is a chemical or physical change? |
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Definition
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Term
| protons have what charge? |
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Definition
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Term
| neutrons have what charge? |
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Definition
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Term
| electrons have what charge? |
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Definition
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Term
| What is found in the nucleus of an atom? |
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Definition
| protons and neutrons. electrons are found outside in the electron cloud. |
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Term
| what is the equation to figure out mass, density and volume? |
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Definition
| Mass over Density x volume |
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Term
| Copper has a density of 5.0 g/cm. what is the volume of a 1.0g of copper? |
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Definition
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Term
| what is the neumonic device for metrics? |
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Definition
King Henry Died Monday Drinking Chocolate Milk.
Kilo, Hecto, Deka,-BASE- deci centi milli |
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Term
| What is an atom that has a net positive charge called? |
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Definition
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Term
| What is an atom that has a net negative charge called? |
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Definition
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Term
| What are the outermost electors of an atom called? |
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Definition
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Term
| If an atom has 5 protons and 7 neutrons what is it's atomic number? |
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Definition
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Term
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Definition
| seperation of metal from a nonmetal solid |
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Definition
| seperating a solid from a liquid |
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Definition
| chopsticks, finger, tweezers, picking things out. |
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Term
| The unit for mass is always what? |
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Definition
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Term
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Definition
| ml or cm3 depending on how the object was measured. ruler or graduated cylinder. |
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Term
| what is the unit for density? |
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Definition
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Term
| what group of elements do not react with other elements? |
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Definition
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Term
| what is the most reactive metallic family and where are they? |
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Definition
| Alkali metals in group one. |
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Term
| What is the most reactive nonmetal family? |
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Definition
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Term
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Definition
| small particles that go together to make protons and neutrons |
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Term
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Definition
| an atom that has been charged. it can be charged positive or negative |
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Term
| What are the energy levels? |
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Definition
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Term
| what is the atomic number? |
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Definition
| the number of protons in an atom. it's the big number in the elements box on the periodic table. |
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Definition
| number of protons and number of neutrons |
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Definition
| atoms of the same element with different numbers of neutrons. |
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Definition
| the average of the mass numbers of all the isotopes of an element |
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Term
| The arrow is a what sign? |
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Definition
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