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Worksheets8.P.1.1
Total questions: 20
Worksheet time: 10mins
An example of a characteristic property is
size.
chemical activity.
amount.
shape.
Unlike physical changes, chemical changes always
involve melting or boiling.
form a new substance or substances.
change the physical state of a substance.
take a relatively long time.
A substance contains two different components joined by physical means. Which best describes the substance?
element
compound
mixture
water
Which type of matter can be separated by physical means?
atom
element
compound
mixture
Which is a homogeneous mixture?
pizza
vinegar
concrete
woven fabric
Which represents a compound?
air
iron
soil
water
Which could best be separated into simpler substances by filtration and evaporation?
atom
element
compound
solution
Can a phase change produce new compounds?
No, because physical changes occur.
No, because chemical changes occur.
Yes, because atoms can bond together to form new substances.
Which is the best example of a heterogeneous mixture?
sugar
brass
salad
salt water
Which substance is composed of only one type of atom?
element
mixture
solution
molecule
Salt and water are stirred together in a beaker. The solid salt particles seem to disappear in the water. Which is the best explanation for the product that is formed?
A solvent has been created.
A solution has been created.
A compound has been created.
A new element has been created.
Why is carbon an element and not a compound?
All carbon atoms have the same number of protons.
Carbon bonds easily with oxygen, but not helium.
Carbon is found in all living organisms.
Which is true about the way atoms of elements combine to form a compound?
Elements always combine in specific ratios.
Elements always combine in the same ratio.
Any element can combine with any other element.
Only a few elements will combine with other elements.
Which of the following results when hydrogen and chlorine chemically bond to form hydrogen chloride?
a mixture
a solution
a compound
a precipitate
Which of the following is NOT a pure substance?
water
helium gas
table salt
air
Which state of matter has no definite volume or shape?
solid
liquid
gas
Which of the following states of matter has particles with the lowest level of energy?
solid
liquid
gas
A student passes a magnet over 10 grams of a powder. Four grams of the powder stick to the magnet, while 6 grams do not. Which of these identifies the substance?
element
compound
mixture
solvent
Which best explains how atoms combine to form compounds?
The atoms in the compound share electrons.
The atoms in the compound share neutrons.
The atoms in the compound share protons.
Which of these are broken down during chemical, but not physical, changes?
elements
mixtures
compounds
solutions
