Characteristics of Life

Question 1

Which statement describes an element? Check all that apply.

Revolt · Accepted Answer

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

Question 2

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

Revolt · Accepted Answer

element

Question 3

hydrogen (H)

Revolt · Accepted Answer

element

Question 4

sodium chloride (NaCl)

Revolt · Accepted Answer

compound

Question 5

carbon dioxide (CO2)

Revolt · Accepted Answer

compound

Question 6

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

Revolt · Accepted Answer

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.

Characteristics of Life Answers

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