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12 Cards in this Set
- Front
- Back
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What physical changes can you make to a substance to determine if it's a element? |
crushing, grinding, and filtering |
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A pure substance is a substance they contains only one type of particle. True or False? |
True. |
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Characteristic properties of elements do NOT depend on the amount of material present in a sample of the element. True or False? |
Frue. |
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List Characteristic Properties of elements. |
Melting Point, Flammability, density, color, reactivity with acid, hardness, |
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A property that nickel, iron, ans cobalt dont share is:
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poor conductivity or electric currentA |
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All elements can be classified as metals, metalloids, or nonmetals. True or false? |
True. |
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When two or more elements are chemically combined to form a new pure substance, we call this substance a: |
Compound |
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Compounds join in specific ratios according to their: |
Masses. |
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Mass ratios can be written as a ratio or a fraction. True or false? |
True. |
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Different mass ratios mean different compounds. True or false? |
True. |
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Each compound has its own physical properties. True or false? |
True. |
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A physical change is the only way to break down a compound. True or false? |
True. |
