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Chem 1A > Chapter 1 > Flashcards

Chapter 1 Flashcards

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1
Q

What is a theory?

A

a. Tested hypotheses that explains WHY nature behaves in a certain way
b. Theories change as more information becomes available

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2
Q

What is a natural law?

A

A summary of observed, measurable behavior

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3
Q

What are the SI units in Chemistry?

A

kg, m, s, K, mol, L

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4
Q

What is precision?

A

The agreement of several values made in the same way

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5
Q

What is accuracy?

A

The agreement of a particular value with its true value

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6
Q

What are the two types of error?

A

Random Error: High or Low

Systematic error: Always off the same way

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7
Q

What is matter?

A

Anything that occupies space and has mass

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8
Q

What is a mixture?

A

Matter of variable composition

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9
Q

What is a heterogenous mixture?

A

Having visually distinguishable parts

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10
Q

What is a homogenous mixture?

A

Having visually indistinguishable parts

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11
Q

What kind of mixture is a solution?

A

Homogenous

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12
Q

What is a compound?

A

Constant composition

Can be broken into smaller materials by chemical, but not physical means

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13
Q

What is analytical chemistry?

A

The determination of qualitative and quantitative composition of chemical samples

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14
Q

What is biochemistry?

A

The study of chemical processes in living things

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15
Q

What is inorganic chemistry?

A

Study of all chemical substances, elements, and compounds, except those containing carbon

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16
Q

What is organic chemistry?

A

The study of compounds containing carbon

17
Q

What is physical chemistry?

A

Application of physical principles to the understanding of chemical processes

Chem 1A (6 decks)

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