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- 1. Multiple Choice
A mixture is made when two or more substances are combined, but they are not combined chemically.
A mixture is the combination of two or more substances that can be easily separated.
True or False?FalseTrue - 2. Multiple ChoiceFiltration is a common method of separating an insoluble solid from a liquid. An example of a mixture is sand and water. This process involves the use of a filter paper placed in a filter funnel. The funnel is placed in a beaker and the mixture of water and sand is poured into the funnel. The liquid part drains through the filter paper into the beaker, leaving the solid sand particles trapped on the filter.
Filtration is a common method of separating an insoluble solid from a liquid.
True or False?TrueFalse - 3. Multiple ChoiceIn filtration, the liquid part collected is called the filtrate and the solid bit that remained on the filter paper is called the residue.
In filtration, what is the part that remains in the filter paper called?Solidfiltrateremainderresidue - 4. Multiple ChoiceEvaporation is good for separating a mixture (solution) of a soluble solid and a solvent. The process involves heating the solution until the solvent evaporates (turns into gas) leaving behind the solid residue.
Evaporation is good for separating a mixture (solution) of a soluble solid and a solvent.
True or False?FalseTrue - 5. Multiple ChoiceTo remove the salt from salt water, the easiest thing to do is boil it and evaporate the water.TrueFalse
- 6. Multiple ChoiceDistillation uses two changes of state. what are they?Evaporation and condensationEvaporation and freezingmelting and boilingsublimation and condensation
- 7. Multiple ChoiceSimple distillation is best for separating a liquid from a solution. It is similar to evaporation, but the vapor is collected by condensation.
What is the difference between evaporation and distillation?the vapor is collected by freezingthe vapor is collected by filtrationthe vapor is collected by condensationthe vapor is collected by heat transfer - 8. Multiple ChoiceFractional distillation is similar to simple distillation. It is best for separating a solution of two liquids. (liquids that dissolve in each other). Fractional method takes advantage of the different boiling points of the two liquids. Fractional distillation takes a bit more time than the simple distillation.
Fractional distillation takes less time than the simple distillation.
True or False?FalseTrue - 9. Multiple ChoiceMagnetism is ideal for separating mixtures of two solids with one part having magnetic properties
How would you separate iron filings mixed with sand?Evaporationfractional distillationfiltrationmagnetism - 10. Multiple ChoiceIf a substance does not dissolve in a solvent, we say that is insolubleTrueFalse
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