Chemistry/Biochemistry Vocabulary Flashcards

1
Q

Gas

A

No definite shape, no definite volume

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2
Q

Liquid

A

No definite shape, definite volume

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3
Q

Solid

A

Definite shape, definite volume

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4
Q

Atom

A

The smallest particle of matter

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5
Q

Proton

A

The positive charged part of an atom’s nucleus

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6
Q

Neutron

A

The neutral charged part of an atom’s nucleus

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7
Q

Electron

A

The negative charged particle that orbits an atom’s nucleus

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8
Q

Ion

A

An atom that has lost or gained an electron

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9
Q

Ionic bond

A

Two or more molecules held together because of the opposite charges of the ions - A weak bond

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10
Q

Covalent bond

A

Two or more molecules held together due to the sharing of electrons - A strong bond

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11
Q

Compound

A

A substance that is held together with ionic bonds

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12
Q

Molecule

A

A substance that is held together with covalent bonds

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13
Q

Chemical formula

A

The chemical symbols of a substance - H2NO4

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14
Q

Chemical equation

A

The reactants and products of a chemical reaction

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15
Q

pH

A

The measure of the strength of an acid or base.

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16
Q

Synthesis reaction

A

An chemical reaction that makes a new substance from two or more different substances: A+B –> C

17
Q

Decomposition reaction

A

A chemical reaction that breaks down on substance into two or more different substances: C–> A+B

18
Q

Exchange reaction

A

A chemical reaction that exchanges parts of one substance with parts of another: AB + CD –> AD + CB

19
Q

Law of conservation of mass

A

Mass cannot be created or destroyed

20
Q

Law of conservation of energy

A

Energy cannot be created or destroyed

21
Q

Acid

A

A substance that measures below seven on the pH scale

22
Q

Base

A

A substance that measures above seven on the pH scale

23
Q

Element

A

The smallest unit of pure matter

24
Q

Heterogeneous

A

A mixture with more than one type substance

25
Q

Homogeneous

A

A mixture with only one type of substance

26
Q

Lipid

A

A biological molecule with long hydrocarbon chains - fats and oils

27
Q

Carbohydrates

A

The biological molecule that is used for energy storage - sugars/starches

28
Q

Amino acid

A

The biological molecule that contains an amine group and is the building blocks of protein

29
Q

Monosccharide

A

The monomer of carbohydrates