PDF Notes: Chemistry Study Guide

    Master this deck with 19 terms through effective study methods.

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    What defines an acid?

    Releases H⁺ ions in water.

    What defines a base?

    Releases OH⁻ ions in water.

    What is a coefficient in chemistry?

    Balances chemical equations.

    What happens in a combustion reaction?

    Substance burns in oxygen, producing CO₂ and H₂O.

    What occurs during a decomposition reaction?

    One compound breaks into simpler substances.

    How does a double replacement reaction work?

    Two compounds switch ions.

    What characterizes an endothermic reaction?

    Absorbs heat energy.

    What characterizes an exothermic reaction?

    Releases heat energy.

    What is half-life?

    Time for half of a radioactive sample to decay.

    What is the role of a neutron?

    Neutral particle in the nucleus.

    What is the nucleus of an atom?

    Dense center containing protons and neutrons.

    What is a proton?

    Positively charged particle in the nucleus.

    What defines a saturated solution?

    Contains maximum amount of dissolved solute.

    What happens in a single replacement reaction?

    One element replaces another in a compound.

    What is a solute?

    Substance being dissolved.

    What is a solvent?

    Substance doing the dissolving.

    What defines a supersaturated solution?

    Contains more dissolved solute than normally possible.

    What occurs in a synthesis reaction?

    Two or more substances combine to form one product.

    What is an unsaturated solution?

    Can still dissolve more solute.