Compounds can be classified into the following three groups: ____________________, ____________________, and ____________________.
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Question 2) ____________________ ____________________ is involved in the process of heredity.
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Question 3) The four groups of organic compounds are ____________________, ____________________, ____________________, and ____________________ ____________________.
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Question 4) A positively or negatively charged particle is called a(n) ____________________.
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Question 5) The smallest unit of a compound is a(n) ____________________.
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Question 6) The number of elements found naturally in our world is ____________________.
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Question 7) The number of protons in an atom is equal to the number of ____________.
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Question 8) The smallest particles of elements that enter into chemical reactions are ____________.
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Question 9) Molecules known as ______________ ____________ are the building blocks of protein.
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Question 10) Molecules that contain carbon, hydrogen, and oxygen are known as ____________ _____________.
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