AnswersPA Human Anatomy Physiology A 2026-2027 SMITH ICElements of Living Organisms

Elements of Living Organisms Answers

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Which statement describes an element? Check all that apply.

A
An element is a pure substance that cannot be broken down into a simpler form.
B
An element is made of two or more atoms that are chemically combined.
C
All elements are listed on the periodic table of elements.
D
An element symbol begins with a capital letter; if there is a second or even third letter, it is a lowercase letter.
2
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element✔ compound carbon dioxide (CO2)

A
element
B
compound
3

elementX compound hydrogen (H)

A
element
B
compound
4

elementcompound sodium chloride (NaCl)

A
element
B
compound
5

Identify each item as either an element or a compound.✔ elementcompound carbon (C)

A
element
B
compound
6

Which of these statements did you include in your answer? Check all that apply.

A
Elements are pure substances with only one type of atom.
B
The substances on Earth are created when two or more elements are combined.
C
Because elements can combine to form compounds, more substances can be created on Earth.

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