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Flashcards in Chapter 2 Deck (31):
1

Matter

Anything that has mass and takes up space.

2

Kinetic energy

Energy at work.

3

Potential energy

Energy that is stored

4

Chemical energy

Energy that is stored in bonds of chemical substances.

5

Electrical energy

Energy that is formed by movement of charged particles.

6

Mechanical energy

Energy that is formed from the direct movement of matter.

7

Radiant energy

Energy of the electromagnetic spectrum.

8

Element

Pure substances

9

Atom

Small particle that makes up an element

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Protons

Positive charge

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Neutrons

No charge

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Electron

Negative charge

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Molecules

Created when two or more atoms combine chemically

14

Compound

A molecule

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Chemical reactions

Reactions of chemicals when combined.

16

Valence shell

Atom's outer most shell.

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Ionic bonds

Form when electrons are completely transfered to another shell.

18

Ions

Charged particles

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Covalent bonds

When electrons do not have to be completely lost or gained for an atom to be stable.

20

Hydrogen bombs

Weak bonds formed when hydrongen atom is bound to an electron-hungry nitrogen or oxygen atom.

21

Synthesis reactons

Occur when two or more atoms combine to form a larger one.

22

Decomposition reactions

Occur when molecule is broken down.

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Exchange reactions

Involving both synthesis and decomposition reactions.

24

Inorganic compounds

Lack carbon and tend to be small.

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Organic compounds

Carbon containing compounds

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Electrolytes

Substances that conduct an electrical current in a solution.

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Carbohydrates

Surgars, starches, they contain carbon, hydrogen, and oxygen.

28

Monosaccharide

One sugar

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Disaccharides

Double sugars

30

Polysaccharides

Many sugars

31

Lipids

Large group of organic compounds, fats.