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Chemistry

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23 cards

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Section 1

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Volume

Front

1 / 23

Chemistry Science

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Last updated

4 years ago

Date created

Mar 14, 2020

Cards (23)

Section 1

(23 cards)

Volume

Front

How much space an object takes up (mL or L)

Back

Physical Change

Front

A change in a substance that does not involve a change in the identity of the substance

Back

Mixture

Front

a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding)

Back

Mass

Front

A measure of the amount of matter in an object

Back

Compound

Front

a substance formed by chemical union of two or more elements or mixtures in definite proportion by weight

Back

Element

Front

A pure substance made of only one kind of atom

Back

Period

Front

A horizontal row of elements in the periodic table

Back

Atomic #

Front

# of Protons in the nucleus of an atom

Back

Chemical Property

Front

A characteristic of a pure substance that describes its ability to change into different substances

Back

Precision

Front

Exactness

Back

Matter

Front

Anything that has mass and takes up space.

Back

Chemistry

Front

Study of matter and its changes

Back

Chemical Equation

Front

A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products

Back

Qualitative measurement

Front

are descriptive and are nonnumeric

Back

Physical Property

Front

A characteristic of a pure substance that can be observed without changing it into another substance

Back

Subscript

Front

A number in a chemical formula that tells the number of atoms in a molecule or the ratio of elements in a compound

Back

Chemical Change

Front

A change in matter that produces one or more new substances

Back

valence electron

Front

The electrons in the outermost shell (main energy level) of an atom; these are the electrons involved in forming bonds.`

Back

Group

Front

*A column on the periodic table

Back

Accuracy

Front

A description of how close a measurement is to the true value of the quantity measured.

Back

significant figures

Front

All the digits that can be known precisely in a measurement, plus a last estimated digit

Back

Quantitative measurement

Front

a measurement involving a quantity or number

Back

Ion

Front

A particle that is electrically charged (positive or negative)

Back