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ATOMS AND MOLECULES > Chemistry > Flashcards

Chemistry Flashcards

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Organic Chemistry 101 flashcards
1
Q

anything that occupies space and has
mass.

A

matter

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2
Q

3 Levels in Understanding Chemistry

A
  1. The Macroscopic Perspective
  2. The Microscopic/Particulate Perspective:
  3. Symbolic Representation
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3
Q

states of matter

A

solid, liquid, gas

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4
Q

properties of matter

A

chemical and physical property

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5
Q

the property that can be determined without changing the identity of the substance

A

physical property

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6
Q

the property that can be determined by changing the identity of the substance

A

chemical property

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7
Q

list of chemical properties

A
  1. reactivity
  2. flammability
  3. toxicity
  4. ability to oxidize
  5. heat of combustion
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8
Q

physical property that depends on the amount of substance

A

extensive property

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9
Q

physical property that does not depend on the amount of substance

A

intensive property

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10
Q

list of extensive properties

A

ass, volume, weight

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11
Q

list of intensive properties

A

density, color, odor,luster malleability,conductivity, hardness, ductility, boiling point, melting point

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12
Q

Fundamental Concepts of the Atom

A

nucleus, protons, neutrons, electrons

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13
Q

atom with no charge

A

neutron

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14
Q

smallest unit of a compound

A

molecule

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15
Q

contains atoms of different elementschemically combined in a fixed ratio

A

compound

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16
Q

Using chemical formulas and structures

A

symbolic representation

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17
Q

atomic number is equal to

A

protons and electrons

18
Q

formula to determine the atomic mass

A

protons + neutrons

18
Q

formula to determine the atomic mass

A

protons + neutrons

19
Q

same atomic number (protons)
- different atomic mass (neutrons)

A

isotopes

20
Q

happens when atoms lose or gain
electrons

A

ions

21
Q

lose of electrons

A

cations (+)

22
Q

gain of electrons

A

anion (-)

23
Q

defined as 1/12 of
the mass of 1 carbon atom.

A

atomic mass unit

24
Q

1 amu is equal to

A

1.661 × 10-24 g

25
Q

shorthand way to use chemical symbols and numbers to represent substance

A

chemical formula

26
Q

tells how many atoms in a molecule

A

subscript

27
Q

tells the ratio of atoms in a molecule

A

empirical formula

28
Q

tells exactly how many each atom in a molecule

A

molecular formula

29
Q

Chemical Formulas

A

empirical formula, molecular formula and structural

30
Q

Three basic types of bonds

A

ionic, covalent, metallic

31
Q

Electrostatic attraction
between ions

A

ionic

32
Q

Sharing of electrons

A

covalent

33
Q

Attraction between
metal cations
surrounded by a sea of
electrons

A

metallic

34
Q

transfer of electrons produces

A

a pair of oppositely charge ions

35
Q

Provides a simple visual means to organize elements in
terms of their chemical and physical properties.

A

periodic table

36
Q

a massive, positively charged nucleus surrounded by
lighter, fast-moving electrons.

A

atom

37
Q

If the numbers of protons and electrons are not the same, the result
is a charged particle, which is called

A

ion

38
Q

can all be understood in terms of the interactions between
negative and positive charges.

A

chemical bonding

39
Q

elements that are found toward the left and bottom of the table

A

metals

40
Q

elements that are found toward the upper rightl

A

non-metals

41
Q

elements that are found in between

A

metalloids

ATOMS AND MOLECULES (1 decks)

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