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WorksheetsChemistry Ch 2 Matter
Total questions: 20
Worksheet time: 12mins
Which is NOT a sign of a chemical reaction taking place?
color changes
gas formed
no temperature change
precipitate forms
Which state of matter has an indefinite shape but a definite volume?
gas
liquid
solid
both liquid and solid
wax + oxygen yields water + carbon dioxide
In this equation, which is a reactant?
oxygen
water
carbon dioxide
all of these
The chemical formula of H2O tells you:
there are 2 hydrogens and 1 oxygen
there are 1 hydrogen and 2 oxygens
there are 1 each of hydrogen and oxygen
there are 2 each of hydrogen and oxygen
The type of substance where you can see the different parts of it is called:
homogeneous mixture
heterogeneous mixture
element
compound
The type of substance that is made of only one thing is called:
homogeneous mixture
heterogeneous mixture
element
compound
The type of substance that has several elements joined together chemically, with bonds, is called:
homogeneous mixture
heterogeneous mixture
element
compound
The type of substance that looks all the same, like a solution of lemonade, is called:
homogeneous mixture
heterogeneous mixture
element
compound
If you were separating a mixture using boiling point differences, like making your own moonshine in a still, which method would you be using?
filtration
distillation
chromatography
Separating a mixture using particle size, like using a colander/strainer to separate spaghetti noodles from the water, is called:
chromatography
distillation
filtration
A gas that's normally a liquid or a solid at room temperature is called (a) .
A substance formed in a chemical reaction is called a (a) .
Which one below is NOT a physical change?
spinning pizza dough
breaking a piece of chalk
ripping a piece of paper
burning a candle
Which is a physical property?
flammability
ability to rust
melting point
combustability
The law of conservation of mass says that matter cannot be _____________ or _____________ , it just changes form.
(a)
Which of the following is a mixture?
pure air
pure water
pure gold
pure oxygen
Which is a chemical change?
milk going bad
freezing milk
boiling milk
An example of a homogeneous mixture is:
distilled water
chicken noodle soup
stainless steel
rocky road ice cream
On the periodic table, the vertical columns are called:
rows
periods
groups
symbols
Which chemical symbol for copper below is written correctly?
Cu
cu
CU
cU
