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- 1. Multiple Choice
Which of the following is a mixture?
air
ice
hydrochloric acid
mercury
- 2. Multiple Choice
WHICH ONE IS A MIXTURE?
BLOOD
CARBON DIOXIDE
SILICON
SODIUM
TIN
- 3. Multiple Choice
A/An _______________ is made up of one or more of the same kind of atom chemically combined.
atom
element
compound
molecule
- 4. Multiple Choice
True or False: elements and compounds are pure substances.
True
False
- 5. Multiple Choice
In a ______________, one substance is dissolved in another substance.
solution
suspension
colloid
- 6. Multiple Choice
Sugar water let's light pass through, and is a homogeneous mixturesolutionsuspensioncolloid - 7. Multiple ChoiceThe substance that does the dissolving is known as the ______solutesolventsolubleinsoluble
- 8. 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
- 9. Multiple Choice
10. Ammonia is a colourless gas with the formula NH3. Ammonia contains hydrogen and nitrogen and cannot be broken down physically. Ammonia is a ___________________ .
compound
element
- 10. Multiple Choice
There are two types of mixtures
Pure substances and mixtures
Colloids and elements
Heterogeneous and homogeneous
Elements and compounds
- 11. Multiple Choice
What type of mixture is this?
homogenous mixture
colloid
compound
heterogeneous mixture
- 12. Multiple Choice
What is the name of the process that occurs when salt is added to water and then stirred until the solid is no longer visible?
Filtration
Evaporation
Dissolving
- 13. Multiple Choice
In a salt solution, what is the solute?
The water
The salty water
The salt
- 14. Multiple Choice
Cake batter is a substance that may contain flour, eggs and sugars mixed by hand or with an electric mixer. Cake batter is a ___________________ .
pure substance
mixture
- 15. Multiple Choice
Methane contains one atom of carbon and four atoms of hydrogen that are chemically bonded. It is a main component of natural gas. Methane is a ___________________ .
pure substance
mixture
- 16. Multiple Choice
In the lab, Maya is using a substance that has a chemical formula and contains two different elements. Maya’s substance is a(n) _______ .
element
compound
heterogeneous mixture
homogenous mixture/solution
- 17. Multiple Choice
A __________________ is a substance that has definite physical and chemical properties such as appearance, melting point, and reactivity.
mixture
pure substance
compound
element
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