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- 1. Multiple ChoiceWhich one of the following would you use to separate sand from iron filings?a bar magnetfilter paperchromatography paperalum
- 2. Multiple Choice
This diagram represents...
An element
A molecule
A compound
A mixture of elements and compounds
- 3. Multiple Choiceelementcompoundmixture of elementsmixture of compounds
- 4. Multiple Choiceelementcompoundmixture of elementsmixture of compounds
- 5. Multiple ChoiceWhat is a mixture?elements chemically combineda combination of different thingsit is found on the Periodic Tableit is made of chemical
- 6. Multiple ChoiceWhat type of mixture is this?heterogeneoushomogeneous
- 7. Multiple ChoiceSand floating in water, but most of the sand is settled at the bottom this an example of which type of mixture?A solutionA colloidA suspensionA compound
- 8. Multiple Choice
Which statement below does NOT describe a colloid?
A colloid is a type of heterogeneous mixture
A colloid is a type of solution.
The particles in a colloid do not settle like they do in a suspension.
The particles in a colloid do not dissolve – they are just too small to be seen.
- 9. Multiple Choice
How are suspensions and colloids different?
Suspensions settle out and colloids do not settle.
Colloids settle out and suspensions do not settle.
Suspensions dissolve and colloids do not.
Colloids dissolve and suspensions do not.
- 10. Multiple ChoiceThe scattering of light by colloids is called ____.homogeneoussuspensionair pollutionThe Tyndall effect
- 11. Multiple ChoiceA substance that contains only one type of atom is a(n)compoundelementheterogeneous mixturehomogeneous mixture
- 12. Multiple Choice
The particles in both a solution and a colloid can
A. scatter light.
B. settle out.
D. pass through a fine filter.
- 13. Multiple ChoiceWhat is matter?a pure substanceanything that occupies space and possesses massan elementa compound
- 14. Multiple ChoiceWhich of the following is not a chemical property?rustingboilingrottingburning
- 15. Multiple ChoiceWhich one of these is a chemical property?melting pointboiling pointcolorflammability
- 16. Multiple ChoiceAbility to rust is this type of property:Physical propertyChemical property
- 17. Multiple ChoiceWhich is an example of a physical property?ability to react with acidstate of matterflammabilityability to react with oxygen
- 18. Multiple ChoiceWhat kind of properties can only be observed when a substance changes into a different substance?physical propertieschemical propertiesliquid propertiesreal properties
- 19. Multiple ChoiceProperties that can be observed without trying to change the identity of the substance.PhysicalChemical
- 20. Multiple ChoiceWhich of the following is a chemical change?human digestioncutting a tree downmelting a chocolate barHas a density of 1 gm/mL
- Answer choicesTagsAnswer choicesTags