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WorksheetsPre-Quiz #2
Total questions: 20
Worksheet time: 10mins
The smallest particle of an element.
compound
solute
atom
proton
The smaller part of a solution that is "dissolved."
soulte
solvent
particle
solid
The characteristic of a substance that can be observed "without" changing it chemically.
chemical property
chemical change
physical property
physical change
The liquid in our lab that "did" the dissolving to form a solution.
solvent
solute
gas
solution
A combination of two or more pure substances NOT chemically combined.
pure substance
compound
mixture
matter
Anything that has mass and takes ups space.
solid
matter
liquid
gas
A substance that has a constant makeup throughout the sample.
pure substance
mixture
matter
pure solution
A process during which the atoms of the starting substances rearrange to form new substances.
chemical change
physical change
physical property
chemistry
A pure substance that cannot be broken into simpler substances by chemical or physical means.
Element
Compound
Chemical formula
Chemical Change
A pure substance defined by two or more elements/atoms chemically combining.
chemical formula
periodic table
compound
matter
Pure substances are...
elements
mixtures
elements and compounds
compounds
Compounds are made of...
mixtures
one element
two mixtures
two or more elements
When elements combine chemically they...
do NOT change their characteristics/properties.
change their characteristics/properties
remain the same
always explode
Mixtures CAN contain...
pure substances
gases only
solids only
everything EXCEPT pure substances
Evidence of chemical changes in our investigation...
bubbling only.
bubbling and temperature change only.
bubbling, temperature change and color change.
we did not have any.
The formula C6H8O7 represents Citric Acid, how many atoms of Carbon are present.
21
6
1
8
How many total atoms are in the compound C6H12O6?
6
12
24
1
The mystery mixture was made of Citric acid and ...
Sodium bicarbonate (baking soda)
Sucrose (sugar)
Sodium chloride (salt)
What 3 elements compose Citric Acid (C6H8O7)
Carbon, Hydrogen, Oxygen
Calcium, Helium, Oxygen
Methane and Oxygen
Carbon, Hydroxide
The water added to the solid chemicals was the ...
solvent
solute
solution
pure substance
