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Substances are either elements ______.
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The color of a substance is a ____ property.
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IPC Review 17
Review 17
| Question | Answer |
|---|---|
| Substances are either elements ______. | compounds |
| The color of a substance is a ____ property. | physical |
| Smoke is a _____. | colloid |
| ______ is a way to separate a mixture using the physical property of boiling point. | Distillation |
| The law of conservation of mass states that the mass of all substances before a ____ change equals the mass of all the substances after the change. | chemical |
| Colloids are _______. | mixtures |
| The freezing point of water is a ______ change. | physical |
| Homogeneous mixtures include only ______. | solutions |
| When lightning converts oxygen gas, O2, into ozone, O3, it is a _____ change. | chemical |
| A fruit salad is a _____ mixture. | heterogeneous |
| Flammability is a ______ property. | chemical |
| When a firecracker explodes, mass is _____. | conserved |
| If a mixture scatters light and does not settle upon standing, it is_____. | a colloid |
| A suspension is a ______ mixture. | heterogeneous |
| The breaking of a glass window is a ______ change. | physical |
| Using oxygen to separate molten copper sulfide into copper and sulfur dioxide is a ____ change. | chemical |
| You are given a flask that contains 250 mL of a clear, brown liquid. You shine a light through the liquid, and no light beam is visible. substance? Y/N? | Yes |
| You are given a flask that contains 250 mL of a clear, brown liquid.You shine a light through the liquid, and no light beam is visible. Colloid? Y/N? | No |
| You are given a flask that contains 250 mL of a clear, brown liquid.You shine a light through the liquid, and no light beam is visible. Solution of a solid in a liquid? Y/N? | Yes |
| You are given a flask that contains 250 mL of a clear, brown liquid.You shine a light through the liquid, and no light beam is visible. Suspension? Y/N? | No |
| You are given a flask that contains 250 mL of a clear, brown liquid.You shine a light through the liquid, and no light beam is visible. Solution of a liquid in a liquid? Y/N? | Yes |
| composition variable | mixture |
| has mass, takes up space | matter |
| two or more elements combined | compound |
| all atoms the same | element |
| composition definite | substance |
| Matter is classified as _______ and mixtures. | substances |
| A colloid is a _______ mixture. | heterogeneous |
| River deltas, which forms as silt and mud settle, are evidence that river water is ______. | suspension |
| A particle scatters light if it is larger than the _____ of light. | wavelength |
| When acid rain falls on limestone, _____ weathering occurs. | chemical |
| The resistance of diamond ( a form of carbon) to corrosion is a ______ property. | chemical |
| When sugar and salt are mixed together, the properties of the final substances are ________ those of the beginning substances. | identical/same |
| The law that states mass is neither gained or lost in a chemical change is ________. | law of conservation of mass |
| Explain how you could separate a mixture of sand and sugar. | add water and strain out the sand and distill the water |
| Why is saltwater a mixture, not a substance? | Can separate it physically by distillation |
| What physical property could you use to separate a solution of two liquids? | the boiling point |
| Explain how different sized particles can be removed from water. | can filter them through different sized filters |
| A burning candle is placed in a sealed container on a sensitive balance. After a while, the flame becomes smaller and then goes out. Explain how the mass of the system changed. | the gas has mass and that's why the balance changed the mass of the system didn't change |
| Iron and oxygen combine to form rust. Compare the mass of iron and oxygen before the reaction with the mass of the rust after the reaction. | 68 16 68+16 4FeIII + 3O2 ---> 2 Fe2O3 272 + 96-------> 272 + 96 368 = 368 Mass didn't change; mass is equal |
| Italian salad dressing is vinegar, oil, and spices. Is it a colloid, a solution, or a suspension after it is shaken well? | suspension |
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marykatescamardo
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