Elements of Living Organisms Answers

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Which statement describes an element? Check all that apply.

An element is a pure substance that cannot be broken down into a simpler form.

An element is made of two or more atoms that are chemically combined.

All elements are listed on the periodic table of elements.

An element symbol begins with a capital letter; if there is a second or even third letter, it is a lowercase letter.

X elementcompound carbon dioxide (CO2)

element

compound

✔ elementcompound hydrogen (H)

element

compound

element✔ compound sodium chloride (NaCl)

element

compound

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

element

compound

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

Elements are pure substances with only one type of atom.

The substances on Earth are created when two or more elements are combined.

Because elements can combine to form compounds, more substances can be created on Earth.

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