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Pure Substances and Mixtures Content Quiz_25.26 _2
By Newcomer International Center
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Last updated 2 days ago
10 questions
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Question 1
1.
Question 2
2.
This graph shows the effect of temperature on the time it takes salt to dissolve in water.
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Question 4
4.
Question 5
5.
Question 6
6.
This is calcium carbonate.
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This is kachumbari. People eat it in East Africa.
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How are
homogeneous mixtures
and
heterogeneous mixtures
similar
?
They both have different properties throughout the mixture.
They both are made of two or more substances that can be separated physically.
How are
pure substances
and
mixtures
different
?
Pure substances are very big, but mixtures are very small.
Pure substances are always made of the same elements, but mixtures are two or more substances that can be separated physically.
Question 3
3.
Salt water is a homogenous mixture. Can it be separated physically?
Yes.
No.
Gold is an element. What is true about gold?
It can be separated physically.
It is made of two or more substances combined together.
It is made of one kind of atom and cannot be divided.
Tea with milk is made of two or more substances and has the same properties throughout the whole mixture. What is tea with milk?
Heterogeneous mixture
Homogeneous mixture
Compound
Element
Question 7
7.
Question 8
8.
Question 9
9.
Question 10
10.
In what temperature of water does salt dissolve the
fastest
?
Icy
Hot
What is calcium carbonate?
Element
Compound
Homogeneous mixture (solution)
Heterogeneous mixture
How do you know what calcium carbonate is?
Because it can be separated physically.
Because it is made of two or more elements that cannot be separated physically.
What is kachumbari?
Element
Compound
Homogeneous mixture
Heterogeneous mixture
How do you know what kachumbari is?
Because it has the same properties throughout the whole mixture.
Because it does not have the same properties throughout the whole mixture.