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Biology 100 - Chapter 2 Review Exam Latest Update., Exams of Biology

Abilene Christian University (ACU)Biology

Biology 100 - Chapter 2 Review Exam Latest Update.

Typology: Exams

2024/2025

Available from 08/11/2025

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Biology 100 - Chapter 2 Review Exam Latest
Update.
What is a compound? - correct answer Different elements/molecules intermilging
with eachother. I.E: H20.
What is a molecule? - correct answer An particle made of two or more atoms.
What is the Atomic Number? - correct answer The number of protons in the
nucleus of the atom.
What subatomic particle has a positive charge? - correct answer Proton.
How many electrons can contain the first shell of an atom? - correct answer 2.
What charge do electrons carry? - correct answer Negative.
What is the mass number? - correct answer Number of protons and neutrons in
the atom.
Where are neutrons found? - correct answer In the nucleus of an atom.
Where are electrons located? - correct answer In the electron/valence shell
outside of the nucleus of an atom.
How many electrons can contain the second shell of an atom? - correct answer
8.
What charge do neutrons carry? - correct answer Neutral.
Where are protons found? - correct answer In the nucleus.
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Biology 100 - Chapter 2 Review Exam Latest

Update.

What is a compound? - correct answer Different elements/molecules intermilging with eachother. I.E: H20. What is a molecule? - correct answer An particle made of two or more atoms. What is the Atomic Number? - correct answer The number of protons in the nucleus of the atom. What subatomic particle has a positive charge? - correct answer Proton. How many electrons can contain the first shell of an atom? - correct answer 2. What charge do electrons carry? - correct answer Negative. What is the mass number? - correct answer Number of protons and neutrons in the atom. Where are neutrons found? - correct answer In the nucleus of an atom. Where are electrons located? - correct answer In the electron/valence shell outside of the nucleus of an atom. How many electrons can contain the second shell of an atom? - correct answer

What charge do neutrons carry? - correct answer Neutral. Where are protons found? - correct answer In the nucleus.

What is it when an element contains a different number of neutrons but the same number of protons and electrons? - correct answer Isotopes. When can molecules be described as polar? - correct answer The electrons in one or more covalent bonds are shared unequally. What is the positive charge of each proton balanced by? - correct answer The negative charge of an equal number of electrons. What will always be the same in elements and their Isotopes? - correct answer Atomic Number. Organizing the elements into the periodic table helped chemists realize that? - correct answer Atoms with similar vacancies in their electron shells behave in similar ways. What is the smallest unit to retain the property of an element? - correct answer An atom. What happens to the nucleus of an atom during radioactive decay? - correct answer Disintegrates, releasing particles and energy What is a Chemical Bond? - correct answer Atoms have given up, shared, or acquired atoms. What is a mixture? - correct answer When two or more molecules intermingle without chemical bonding. When electrons are equally shared between two atoms, what bond is form? - correct answer Non-polar covalent. The large number of nonpolar covalent bonds in oils prevents mixing with water; oil and similar molecules are described as? - correct answer Hydrophobic.

What are the chemical bonds weakest to strongest? - correct answer Hydrogen, Ionic, Covalent. Calcium, when written as Ca2+, represents _____. - correct answer Calcium ion. How many atoms would be present in a single molecule of Na2SO4? - correct answer 7. How does a salt differ from an acid? - correct answer Both dissolve in water but salts release ions other than H+ and OH-.