Pretest Answers

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4

The most abundant element in the atmosphere can also be found in

A
beans and whey protein.
B
fruits and hydrogenated oils.
C
carbonated water and glucose.
D
white sugar and soy protein.
5

Which statement correctly describes glucose open paren cap c sub 6 cap h sub 12 cap o sub 6 close paren ?

A
It is an element made of three types of atoms.
B
It is an atom made up of carbon, hydrogen, and oxygen.
C
It is a compound made of twenty-four total atoms.
D
It is made of matter and contains twenty-four molecules.
6

Which substance is a compound?

A
water
B
hydrogen
C
gold
D
oxygen
9

Students are each given a 20-gram sample of an unknown solid compound in a clear plastic bag. They are instructed to break the material into smaller parts by gently hitting it with a hammer. Some of the parts break into large chunks and some look like a fine powder. Which statement correctly describes these broken pieces of the sample?

A
Each piece contains the same proportion of different elements.
B
The larger pieces are still compounds and the smaller pieces are elements.
C
The fine powder pieces are individual atoms broken from the solid.
D
Each piece contains the same number of atoms.
10

A new organism is discovered at the bottom of the ocean. A scientist is determining the composition of elements found in the tissues of the organism. Which elements will most likely be found?

A
carbon, nitrogen, aluminum, and gold
B
carbon, hydrogen, nitrogen, and oxygen
C
carbon, nitrogen, oxygen, and argentum
D
silver, gold, argentum, and sulfur

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