Reviewing Unit 2 ALSO Vocabulary for Unit 3

What is a chemical bond?

• A type of chemical reaction

• A region that forms when valence electrons from different atoms interact

• A charged atom

• A rule stating atoms must have 8 valence electrons

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What are valence electrons?

• Electrons that can be transferred or shared with another atom

• Electrons in the nucleus

• Atoms that form ionic bonds

• Positively charged ions

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What is an ionic bond?

• A covalently bonded group of atoms

• Bond formed by transferring electrons

• A molecule

• Bond formed by sharing electrons

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What is a cation?

• An uncharged atom

• A negatively charged ion

• A molecule

• A positively charged ion

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What does the Octet Rule state?

• Atoms must have 8 protons

• Atoms share electrons to form a molecule

• Atoms lose, gain, or share electrons to have 8 valence electrons

• Atoms must have 8 molecules

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What is a subscript used to indicate?

• The temperature of a reaction

• The charge of an ion

• The number of molecules

• The number of atoms

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What is a polar bond?

• A bond that forms an ion

• A bond where electrons are not shared equally

• A bond between a metal and a nonmetal

• A bond where electrons are shared equally

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What is the IUPAC?

• An element on the periodic table

• A type of chemical bond

• An organization that names chemical elements and compounds

• A type of chemical reaction

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What is a product in a chemical reaction?

• The heat released

• A substance on the right side of the arrow

• A substance that is unchanged

• A substance on the left side of the arrow

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What does the Law of Conservation of Matter state?

• Matter is created in chemical reactions

• Matter is destroyed in chemical reactions

• The same number of atoms occurs in the products as in the reactants

• Atoms are rearranged to create new elements

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