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Chemistry⚗ > MIDTERMS > Flashcards

MIDTERMS Flashcards

1
Q

What does the creation mandate reveal?

A

Why God made humans and that we have wise dominion over the earth.

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2
Q

What does science try to do?

A

explain everything

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3
Q

What is presumption?

A

an idea that a person assumes to be true without proof

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4
Q

What is a naturalistic worldview assume?

A

that science is the only reliable path to truth

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5
Q

What is chemistry?

A

the study of matter and the changes it undergoes

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6
Q

What is quantitative?

A

numerical data

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7
Q

Who discovered oxygen?

A

Priestly

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8
Q

What is science?

A

the total collection of knowledge gained through systematic observations of nature.

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9
Q

What does applied science explore?

A

natural products and processes for specific applications

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10
Q

What is the difference between a controlled and natural experiment?

A

one is under your control and the other is where you sit back and observe.

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11
Q

An idea or hypothesis that has been consistently tested and proven

A

theory

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12
Q

What should a hypothesis be according to Ockham’s razor?

A

efficient and simple

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13
Q

The amount of matter packed into a given volume determines its what?

A

density

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14
Q

The term describes the ability of a material to be drawn into wires.

A

ductility

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15
Q

What reacts violently with water?

A

chemical properties

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16
Q

The change results into a new substance being formed

A

chemical change

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17
Q

A material that can be separated by physical means into two or more pure substances.

A

mixture

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18
Q

The smallest basic particles of an element.

A

atoms

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19
Q

in the chemical formula, what is the coefficient?

10Al(c2h3o2)

A

10

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20
Q

The state of matter that displays the greatest amount of kinetic energy.

A

plasma

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21
Q

The disappearance of dry ice left out in a dish is an example of what?

A

sublimation

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22
Q

How can physical properties be measured or observed?

A

with out changing the actual composition of the material

23
Q

What is matters main rule?

A

it cannot be created nor destroyed, only converted from one to another.

24
Q

What is the standard metric unit of measurement for energy?

A

the joule

25
Q

What is the smallest basic particle of an element or electron?

A

Atom

26
Q

What is a charged atom called?

A

an ion

27
Q

What is the subscript of this example? Mg(OH)2

A

2

28
Q

What can be divided into different types like kinetic and potential energy?

A

mechanical energy

29
Q

The measure of randomness or disorder is called what?

A

entropy

30
Q

The jiggling of tiny particles in water as seen through a microscope that was first observed in 1827 is known as what?

A

Brownian motion

31
Q

The act of comparing an unknown quantity to a standard unit.

A

a measurement

32
Q

What is the SI base unit of measurement?

A

the meter

33
Q

What compares the magnitude of the measurement error with the size of the measurement?

A

the percent error

34
Q

How many base units are in the metric system?

A

7

35
Q

What are different properties called?

A

dimensions

36
Q

Lined up on a scale to provide a means of measuring.

A

Dimensional unitis

37
Q

What is the base unit of mass?

A

kilogram

38
Q

A numerical evaluation of how close the measured value is to the actual or accepted value of the detentions measured.

A

accuracy

39
Q

How reliable a measurement is or how exactly one can make a measure.

A

precision

40
Q

What are the two parts of measured data?

A

number and unit

41
Q

Digits that are known for certain plus one estimated digits are known as what?

A

significant digits

42
Q

How many derived units are approved to use in the SI system?

A

22

43
Q

Who developed the metric system?

A

France

44
Q

Name the seven base units.

A

Kilo Hecto Decka BASE UNIT Deci Centi Milli

45
Q

What determines the atomic number?

A

the amount of protons in the nucleus

46
Q

Who developed a mathematical model?

A

Niels Bohr

47
Q

What does the Heisenberg uncertainty principle state?

A

we cannot know the location and direction of an electron at the same time.

48
Q

What are solutions to the various wave of equations scientist use to the energy momentum and probable location of an electron?

A

quantum numbers

49
Q

Can two electrons have the same quantum number?

A

no

50
Q

Who was the first to develop an atom model based on experimental evidence?

A

John Dalton

51
Q

Who named the negatively charged cathode-ray particles electrons?

A

George Johnson Stoney

52
Q

Who was a professor at Cambridge who reasoned that there was a small region in an atom called nucleus?

A

Ernest Rutherford

53
Q

Who was an assistant of Rutherford and designed an experiment that used a thin sheet of gold foil and a beam of alpha particles?

A

Hans Geiger

54
Q

Who suggested that electrons were only in certain energy levels which he called principle energy levels, outside the nucleus?

A

Neils Bohr

Chemistry⚗ (7 decks)

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