8.1 Pure substances
Quiz
•
Chemistry
•
7th Grade
•
Practice Problem
•
Medium
Mohamed M.Elhassan
Used 33+ times
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17 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main ingredient in vaccines?
Water
Chlorine
Carbonates
Ibuprofen
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a pure substance consist of?
One substance only, nothing mixed with it
Multiple substances mixed together
Water and impurities
Elements and compounds
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a pure substance?
Tap water
Seawater
Silicon used in integrated circuits
Ibuprofen powder used for vaccines
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why doesn't the vaccine company use tap water in its vaccines?
Because it is readily available.
Because it is impure and contains other substances.
Because it is a compound.
Because it is a painkiller.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does purity describe?
The amount of a substance in a mixture
The color of a substance
The temperature of a substance
The taste of a substance
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purity of the water in the Arabian Sea?
100%
96.3%
3.7%
Salty
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main ingredient in ibuprofen?
H2O
NaCl
C13H2802
C13H1802
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