Term
| Most elements are metals. Name the physical properties. |
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Definition
| shiny, bendable, conducts heat |
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Term
| An object that takes up more space than another object has a greater |
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Definition
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Term
| What is the density of an object that has a mass of 92 grams and a volume of 40 milliliters. |
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Definition
d= mass/volume
92/40 = 2.3 grms/ml |
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Term
How many different elements are in a molecule of CO
2 |
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Definition
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Term
| Particles in salts arrange themselves in a regular geometric pattern to form |
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Definition
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Term
| Why do most materials get smaller when they cool? |
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Definition
| The particles have less space between them. |
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Term
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Definition
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Term
| Materials in simple ixtures |
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Definition
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Term
| In a solution, the substances that dissolves is the |
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Definition
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Term
| Compare the denisty of gold in a ring and a necklace. |
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Definition
| The gold will have the same density no matter what the gold is used in. |
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Term
| Explain how buoyancy and density are related to each other. |
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Definition
| If a material floats in a liquid it is buoyant. Whether is floats depends on the density of the material and the liquid. If the object's density is less than the liquid's density, it will float. If the object's density is greater than the liquid's density, it will sink. |
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Term
| Describe the similarities and differences between mixtures and solutions |
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Definition
| In mixtures and solutions, elements or compounds are mixed together but they are not bonded to each other. In a mixture, different materials are placed together but do not form compounds. Simple mixtures can be easily separated. A solution is a special mixture in which substances are spread out evenly and will not settle. In a solution, the solute is dissolved in the solvent. The amount of solute that can be dissolved in the solvent is a property of the substance. |
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