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Junior Year > Chem 1 midterm > Flashcards

Chem 1 midterm Flashcards

1
Q

Anything that has volume and mass

A

Matter

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2
Q

Two or more different atoms bonded together

A

Compound

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3
Q

Two or more substances physically combined

A

Mixture

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4
Q

Type of matter composed of the same type of atom or molecule

A

Pure Substance

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5
Q

Different molecular forms of an element (oxygen, ozone)

A

Allotrope

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6
Q

Matter that can’t be broken down into a simpler substance

A

Element

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7
Q

Two of the same atom bonded together

A

Diatomic Molecule

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8
Q

Smallest representation of an element

A

Atom

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9
Q

A mixture evenly mixed together

A

Homogeneous Mixture

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10
Q

Physical properties that have to do with numbers

A

Quantitative Data

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11
Q

Starting material of a chemical reaction

A

Reactant

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12
Q

Two pure substances unevenly combined together

A

Heterogeneous Mixture

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13
Q

This states that matter can’t be created or destroyed in a chemical reaction

A

Law of Conservation of Mass

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14
Q

Two or more similar or different atoms bonded together; smallest unit of a compound

A

Molecule

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15
Q

The ending material of a chemical reaction

A

Product

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16
Q

Two atoms with the same number of protons but different number of neutrons

A

Isotope

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17
Q

A weighted average of all of an element’s isotopes masses

A

Molar Mass

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18
Q

The total number of protons and neutrons in the nucleus of an atom

A

Atomic Mass Number

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19
Q

Describes total number of protons in the nucleus of an atom

A

Atomic Number

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20
Q

A group of atoms covalently bonded together with an overall (non-zero) charge

A

Polyatomic Ion

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21
Q

Refers to a column in the periodic table

A

Group

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22
Q

Specific name given to the 17th column in the periodic table

A

Halogen Group

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23
Q

Negatively charged atoms or molecules

A

Anion

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24
Q

Number that contains 6.022 X 10^23 things

A

Avogadro’s Number / Mole

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25
Q

Refers to a row in the periodic table

A

Period

26
Q

Charged atom or molecule

A

Ion

27
Q

Positively charged atom or molecule

A

Cation

28
Q

Group in periodic table that doesn’t react with anything and are mainly gases

A

Noble Gases / Group 18

29
Q

States that atoms will gain, lose or share e’ until they have 8 e’ in their valence shell

A

Octet Rule

30
Q

Describes elements in groups 3 to 12 in the periodic table

A

Transition Metals

31
Q

Specific name given to the second column in the periodic table

A

Alkaline Earth Metals

32
Q

How close a measured value is to the true value

A

Accuracy

33
Q

Smallest whole number ratio of atoms in a compound

A

Empirical Formula

34
Q

Contains all wavelengths of visible light; rainbow

A

Continuous Spectrum

35
Q

Elements that have the properties of both metals and nonmetals

A

Metalloids

36
Q

The value that describes how much 1 mole of a compound weighs

A

Molar Mass

37
Q

Specific amount of energy

A

Quantized

38
Q

The number of cycles a second

A

Frequency

39
Q

The shape that describes the highest probability of finding an electron

A

Orbital Configuration

40
Q

State where the e’ contains the smallest amount of energy possible

A

Ground State

41
Q

The highest energy level occupied by e’

A

Valence Shell

42
Q

Spectrum that contains only a few wavelengths of visible light

A

Line Spectrum

43
Q

When the minimum amount of energy is shined on a metal’s surface and a e’ is ejected

A

Photoelectric effect

44
Q

an e’ will occupy each orbital orientation before pairing occurs

A

Hund’s rule

45
Q

E’ will enter the e’ cloud starting with the lowest energy state first

A

Aufbau principle

46
Q

Scientist that defined the term element

A

Antoine Lavoisier

47
Q

The distance between crest to crest of a wave

A

Wavelength

48
Q

Discovered the nucleus of the atom using Au and alpha particles

A

Ernest Rutherford

49
Q

State where an e’ has gained energy and moved to a higher energy level

A

Excited State

50
Q

Br I N Cl H O F

A

Diatomic Molecules

51
Q

Model of the atom where we know nothing about its structure

A

Black Box Model

52
Q

First to use the scientific method; Law of Conservation of mass

A

Antoine Lavoisier

53
Q

Discovered Nuclear Radiation

A

Henri Becquerel

54
Q

Name given to group 17 in the periodic table, elements gain 1 e’ to form an octet

A

Halogens

55
Q

An area around the nucleus where the e’ were surrounded by a sea of positives

A

Bad question, probably either plum pudding or orbitals. mark as you did it and move on

56
Q

First to believe in all matter was composed of small particles called atoms

A

John Dalton

57
Q

Model of the atom where the e’ were surrounded by a sea of positives

A

Plum Pudding Model

58
Q

Proposed the Plum Pudding Model

A

JJ Thomson

59
Q

Discovered the e’ and its negative charge using the Crookes tube and magnet

A

JJ Thomson

60
Q

The area that describes the highest probability of finding an e’

A

Orbital

Junior Year (7 decks)

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