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Chemistry > Basic Terms > Flashcards

Basic Terms Flashcards

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1
Q

Ionic Compound

A

compounds made up of ions

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2
Q

Covalent compound

A

non-metals bond by sharing valence electrons

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3
Q

Polyatomic Ion

A

ions which consist of more than one atom

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4
Q

Cation

A

positive charge ion

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5
Q

Anion

A

negative charge ion

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6
Q

properties of Ionic Compounds

A

form crystals
high melting/boiling points
hard and brittle
conduct electricity in water

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7
Q

Properties of Metallic Compounds

A

silvery
hard
conductive

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8
Q

Properties of Metallic compounds

A

shiny
conductive
solid at room temp
high mp/bp

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9
Q

Extensive Properties

A

mass
length
volume
shape

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10
Q

Intensive property

A

color
boiling point
melting point
density

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11
Q

Groups

A

Column

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12
Q

Periods

A

Rows

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13
Q

Avogadros #

A

the # of molecules in a mole

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14
Q

Dimensional Analysis

A

Convert Units

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15
Q

Mass using volume

A

Volume * Density

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16
Q

Atomic Mass

A

of protons + # of neutrons

17
Q

Atomic Number

A

of protons (NEVER CHANGES)

18
Q

Isotope

A

Same element, different # of neutrons

19
Q

properties of non-metals

A

varied in color
non-conductive
Low melting and boiling points

20
Q

properties of metals

A

shiny
conductive
solid at room temp ( except mercury)
high melting/boiling points
ductile

21
Q

properties of semi-metals

A

silvery
solid
semi conductive
brittle

22
Q

oxidation

A

the process where atoms lose electrons

23
Q

reduction

A

Gaining electrons (ox# increases)

24
Q

Redox Reaction

A

Reactions where there’s transfer of electrons (Elements oxidation # changes)

25
Q

Precipitate Reaction

A

solid that forms from a reaction

26
Q

pH

A

the negative logarithm of hydrogen ion concentration

27
Q

Arrhenius Rules

A

Acids add H+

Bases add OH-

28
Q

Ionic Radius

A

how a radius changes when cations or anions form

29
Q

atomic radius

A

radius of neutral atom

30
Q

zEff

A

actual positive charge an e- feels due to shielding

31
Q

ionization energy

A

energy required to remove an electron from the valence shell of a gaseous atom

Trend:
down a group, I.E decreases
across a period, I.E increases

32
Q

electronegativity

A

tendency of an atom to attract electrons towards itself

Trend:
Down a group, E.N decreases
Across a period, E.N increases

33
Q

electron affinity

A

the change in energy that comes from the addition of an electron to a gaseous atom

EA negative => energy released
EA positive => energy absorbed

Chemistry (7 decks)

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