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Acids and Bases

Across
the dissolved substance in a solution
a numerical scale used to indicate how acidic or basic a solution is
very small particle that makes up all matter
A mixture in which the sub- stances are not evenly mixed is a ______________ mixture.
an electronic instrument with an electrode that is sensitive to the hydronium ions in a solution
a compound that changes from one color to another within a particular pH range
Roman emperor assassinated on the "Ides of March"
a homogeneous mixture
Down
matter that has the same composition and proper- ties throughout
a combination of two or more substances that can be separated by physical means
matter with a definite volume but no definite shape that can flow from one place to another
A ____________ mixture is two or more substances that are evenly mixed on the atomic level, but the sub- stances are not bonded together.
Substance that is used to dissolve the solute
The combination of a water molecule and a hydrogen ion to create a positively charged particle
A substance that releases a positively charged hydrogen ion, H
a substance that produces hydroxide ions when dissolved in water