Fall ACP Review - Units 3 and 4

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What is an ionic compound?

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An ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding. They typically form between metals and nonmetals.

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How do you name ionic compounds?

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Ionic compounds are named by stating the name of the cation (metal) followed by the name of the anion (nonmetal) with its ending changed to '-ide'. For example, NaCl is named sodium chloride.

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What is a mole in chemistry?

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A mole is a unit of measurement in chemistry that represents 6.02 x 10^23 particles (atoms, molecules, ions, etc.). It is used to convert between the number of particles and the amount of substance.

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How do you convert grams to moles?

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To convert grams to moles, divide the mass of the substance (in grams) by its molar mass (in g/mol). Formula: Moles = Mass (g) / Molar Mass (g/mol).

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What is the empirical formula?

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The empirical formula is the simplest whole-number ratio of atoms of each element in a compound. For example, the empirical formula of glucose (C6H12O6) is CH2O.

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What is a molecular formula?

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The molecular formula shows the actual number of atoms of each element in a molecule. For example, the molecular formula of glucose is C6H12O6.

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How do you name covalent compounds?

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Covalent compounds are named using prefixes to indicate the number of atoms of each element. For example, CO2 is named carbon dioxide.

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What is a Lewis dot structure?

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A Lewis dot structure is a diagram that shows the bonding between atoms of a molecule and the lone pairs of electrons that may exist. It uses dots to represent valence electrons.

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What is the significance of the coefficient in a chemical equation?

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Coefficients in a chemical equation indicate the number of moles of each substance involved in the reaction. They are used to balance the equation according to the law of conservation of mass.

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How do you determine the number of atoms in a sample?

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To determine the number of atoms in a sample, first convert the mass of the sample to moles using the molar mass, then multiply the number of moles by Avogadro's number (6.02 x 10^23).