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IPC Review 17

Review 17

QuestionAnswer
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
Created by: marykatescamardo