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A single atom of oxygen cannot be subdivided into simpler substances by any physical or chemical means. Therefore, it is:

Select one:
a. a molecule
b. a compound
c. a mixture
d. an element

Which mixture has the largest particle size?
Select one:
a. solution
b. colloid
c. compound
d. suspension


Which substance cannot be decomposed into simpler substance(s)?
Select one:
a. iodine
b. alcohol
c. methane
d. ethanol


Which of the following is not an example of a compound? A substance comprised of:
a. atoms of the same element
b. atoms of two different elements

User JDpawar
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2 Answers

5 votes
qn1)d
qn2)b
qn3)a
qn4)a
User Tanmay Patel
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8.8k points
3 votes
1) D. An element
2) D. Suspension
3) A. Iodine
4) A. Atoms of the same element
User Cristian Dinu
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8.1k points