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Questions and Answers
What are the four elements common to all living organisms?
What are the four elements common to all living organisms?
- O, C, H, N (correct)
- O, C, H, S
- O, C, H, P
- O, C, H, F
What is the atomic mass of an element?
What is the atomic mass of an element?
- Protons - Neutrons
- Mass of a single atom
- Protons + Neutrons
- Mean of mass number because isotopes occur (correct)
Why do atoms in a cell not collide with each other?
Why do atoms in a cell not collide with each other?
- Because their electrons are negatively charged and repel each other (correct)
- Because they have the same atomic mass
- Because they have the same number of protons
- Because they have the same number of neutrons
What is the result of a dehydration synthesis reaction?
What is the result of a dehydration synthesis reaction?
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What is the periodic table organized by?
What is the periodic table organized by?
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What are the four major classes of biological macromolecules?
What are the four major classes of biological macromolecules?
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