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Weak acids or bases that can react with strong acids

or bases to prevent sharp, sudden changes in pH

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The pH scale measures the acidity or basicity in a substance measured between 0-14.

It indicates the concentration of H(+) ions and OH(-) ions in a solution.

Acidic- to be below a 7 on the pH scale. Strong acids range from 1-3 on the pH scale.

Basic- to be above a 7 on the pH scale. Strong bases range from 11-14 on the pH scale.

To be a 7 on the pH scales means the balance is equal with H(+) and OH(-) ions.

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Attraction between a hydrogen atom with a partial

positive charge and another atom with a partial negative charge

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Solution is a mixture in which a substance (solvent) dissolves.

Suspension is a mixture of liquids with particles of a solid that do not dissolve in the solution.

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Slight attraction that develops between

oppositely charged regions of nearby

molecules

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The amount of heat added to change the temperature of a object.

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Cohesion is the attraction between molecules of the same substance.

Adhesion is the attraction between molecules of different substances.

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Chemical compounds are substances consisting of two or more different chemical elements

Chemical bonds are formed by the joining of two or more atoms

- Ionic Bond: formed when one or more electrons are transferred from one atom to another

-Covalent Bond: bond between atoms in which electrons are shared

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Atoms of the same element that differ in the

number of neutrons

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Having both negative and positive polls opposite of each other on an atom.

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Number of protons in a nucleus

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-Electrons are negatively charged particles that are in constant motion

-Protons are positively charged

-Neutrons carry no charge