1121 Flashcards

(37 cards)

1
Q

Accuracy

A

The proximity of a measurement to its actual value

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2
Q

Boyle

A

He transformed alchemy into to science of chemistry and developed a gas law

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3
Q

Chemistry

A

The science that deals with the structure composition and properties of matter and the chance formations of matter undergoes

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4
Q

Conversion factor

A

A value that changes a measurement from one set of units to another

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5
Q

Dalton

A

He developed the modern atomic theory

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6
Q

Experiment

A

And investigation based on controlled observations

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7
Q

Hypothesis

A

A possible solution that explains all of the known facts

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8
Q

Lavoisier

A

He was called the father of modern chemistry

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9
Q

Measurement

A

Comparing an unknown quantity with a known fixed unit

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10
Q

Mendelev

A

He designed the periodic table of elements

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11
Q

Natural philosophers

A

Practice inductive reasoning and believe that knowledge of the universe could only be attained by the use of both reasoning and observation

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12
Q

Philosophers

A

Practice deductive reasoning and believe that the secrets of the universe could be learned simply by thinking about the universe

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13
Q

Percision

A

The degree of reproducibility of the measurement

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14
Q

Scientific law

A

A theory that has become established without conflicting evidence

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15
Q

Scientific method

A

Means by which a camisoles an analytical problem

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16
Q

Significant figures

A

All accurate figures plus one last figure

17
Q

Specific gravity

A

The ratio of the mass of a substance compared to equal volume of pure water

18
Q

Theory

A

A general principle or solution that explains or solves a problem

19
Q

Who’s major shortcoming that he failed to perform even simple experiments to prove or disapprove his theories

20
Q

Many early Arab what was searching for a substance that would transmit any metal to gold

21
Q

Kevin scale

A

Absolute zero

22
Q

What are the three most commonly derived units used in chemistry

A

Area volume and density

23
Q

The creator design the what and processes in nature to operate according to what that he devised

A

Elements… Laws

24
Q

A positive exponent indicates that the power of 10 is what then one; a negative exponent indicates that it is what than one

A

Greater… Less

25
What units are always carried throughout calculations and must be treated like any other mathematical quantity
Units of measurement
26
What is a measurement of Adams molecules etc. the measurement of? and what is a measurement for that quantity
Particle of matter… Mole
27
What is the measurement of heat the measurement of? And what is the unit of measurement for that quantity
temperature... Kelvin degree
28
What is the measurement of distance a measurement of? And what is the unit of measurement for that quantity
Length… Meter
29
What is the measurement of the amount of matter in a measurement of? And what is the unit of measurement for that quantity
Mass… Kilogram
30
What is a measurement of flow of electrons a measurement of? And what is the unit of measurement for that quantity
Electric current… Ampere
31
What is a measurement of duration a measurement of? And what is the unit of measurement for that quantity
Time… Second
32
What is the measurement of brightness and measurement of? and what is the unit of measurement for that quantity
Luminous intensity… Candela
33
What is Dalton's atomic theory
Each element is made up of tiny particles called Atoms
34
The aroms of different elements are different and some fundamental way or Ways and
The atoms of a given element are identical
35
What is formed when atoms combined with each other
A chemical compound
36
What reactions involve changes and away atoms are bound together and not an Atoms themselves
Chemical reactions
37
The six steps of scientific method
1. state the problem 2. research the problem 3. formulate a hypothesis 4. Test the hypothesis 5. formulate a very 6. communicate the results