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STEM-11 QUARTER 3 > gen chem > Flashcards

gen chem Flashcards

1
Q

can be observed, measured, and tested, without changing the composition of matter.

A

physical properties

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2
Q

do not depend on the amount Of matter present or being measured

A

intensive properties

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3
Q

properties that depend on the amount of matter present or being tested

A

extensive properties

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4
Q

are properties involved in the transformation. of substances into other materials

A

chemical properties

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5
Q

do not alter the identity of a substance

A

physical change

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6
Q

produce new compound with a different chemical composition

A

chemical change

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7
Q

TYPES OF CHEMICAL REACTION

A
  1. COMBINATION REACTION
  2. DECOMPOSITION REACTION
  3. SINGLE REPLACEMENT REACTION
  4. DOUBLE REPLACEMENT REACTION
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8
Q

A + B = AB

A

COMBINATION REACTION

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9
Q

AB = A + B

A

DECOMPOSITION REACTION

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10
Q

A + BC = AC + B

A

SINGLE REPLACEMENT REACTION

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11
Q

AB + CD = AC + BD

A

DOUBLE REPLACEMENT REACTION

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12
Q

2 ways to classify matter

A
  1. Classify according to it’s physical state solid, liquid, or gas
  2. Classify it according to it’s composition a pure substance or a mixture
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13
Q

contains only one kind of element or compound.

A

pure substance

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14
Q

are substances composed of only one kind of atom

A

elements

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15
Q

lightest element among the others. First element in the periodic table

A

hydrogen

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16
Q

most abundant elements in the universe

A

carbon

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17
Q

found on toothpaste in the form of flouride

A

flourine

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18
Q

first metals used by man

A

copper

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19
Q

most abundant metals in the earth’s crust

A

aluminum

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20
Q

commonly used in food preservation

A

sodium

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21
Q

reactive metal never found free in nature

A

pottasium

22
Q

metal that exists in liquid state

A

mercury

23
Q

essential elements needed by the body, makes bones stronger

A

calcium

24
Q

yellowish nonmetal found in volcanic events

A

sulfur

25
Q

metal used to make jewelry

A

gold

26
Q

highest electrical conductivility among metals

A

silver

27
Q

abundant elements in the universe colorless, tasteless, and odorless gas

A

helium

28
Q

noble gas primarly used to lights

A

neon

29
Q

essential element in the body and a component of hemeglobin , which carries oxygen from the lungs to the tissues of the body

A

iron

30
Q

greatest number of elements in the periodic table

A

metals

31
Q

properties of metals

A
  1. lusturous
  2. malleable
  3. ductile
  4. good conductors of heat and electriccity
  5. hard
  6. high densities
32
Q

rightmost part of the periodic table except for hydrogen

A

non metals

33
Q

properties of non metals

A
  1. dull appearance
  2. brittle
  3. poor conductors of heat and electricity
  4. good insulators
  5. may exist in solid, liquid gas
  6. low densities
34
Q

elements which have properties of both metals and non metals

A

metalloids

35
Q

substances composed of 2 or more kinds of atoms that are chemically bonded

A

compounds

36
Q

carbon dioxide

A

carbonic acid gas

37
Q

sodium chloride

A

table salt

38
Q

sodium bicarbonate

A

baking soda

39
Q

calcium carbonate

A

limestone

40
Q

aceitc acid

A

vinegar

41
Q

isoprophl alcohol

A

rubbing alcohol

42
Q

pottasium bitartrate

A

cream of tartar

43
Q

sodium hydroxide

A

lye

44
Q

hydrochloric acid

A

muriatic acid

45
Q

sulfuric acid

A

battery acid

46
Q

ammonia

A

battery acid

47
Q

H+ ions in a aqueous solution

A

acid

48
Q

soap ammonia etc

A

base

49
Q

compound that is formed when an acid and base react

A

salt

50
Q

made up of 2 or more substances mixed together but not chemically bonded

A

mixture

51
Q

has only one phase and a uniform composition all throughout

A

homogeneous mixture

STEM-11 QUARTER 3 (7 decks)

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