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physics Flashcards

1
Q

nitrate

A

NO3

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2
Q

ammonium

A

NH4

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3
Q

sulphate

A

SO42

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4
Q

hydroxide

A

OH

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5
Q

phosphate

A

PO43

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6
Q

Carbonate

A

CO32

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7
Q

bicarbonate

A

HCO3

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8
Q

caustic sugar

A

sodium hydroxide

NaOH

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9
Q

plaster of paris

A

calcium sulphate

(CaSo4).5 H2O

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10
Q

blue vitriol

A

copper sulphate

CuSo4 5H2O

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11
Q

washing soda

A

sodium carbonate

Na2Co3 10H2O

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12
Q

chalk

A

calcium carbonate

CaCo3

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13
Q

atom

A

smallest unit of matter
take part in chemical equation
can’t be broken down

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14
Q

molecule

A

combination of atoms
retains characteristics
smallest unit E,C to exist

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15
Q

element

A

pure substance
can’t be broken down
1 type of atom
block on periodic table

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16
Q

compound

A 
pure
2 or more E bonded chemically 
can’t separate by physical means
new substance formed
bonded in fixed ratio
strong chemical bonds
energy is released
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17
Q

mixture

A 
2 or more substances
has total properties of all substance 
recognize particles
loosely bonded
no energy change
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18
Q

emulsion

A

emulsifier added
enable 2 immiscible liquids to mix
mayonnaise

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19
Q

suspension

A

insoluble small solid particles
in liquid
sea salt and sea water

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20
Q

solution

A

mixture

solid dissolved in liquid

21
Q

solvent

A

liquid

22
Q

solute

A

substance

that dissolves in liquid

23
Q

halogens

A 
group 7
1 electron short
bond with group 1
\+element- Halide
NaCl
24
Q

noble gasses

A 
group 8
full shells
rarely bond
not solid at room temp
un reactive
25
Q

alkali metals

A

group 1
1 electron short
wants to bond
oxides from alkali solutions

26
Q

alkali earth metals

A

Group 2
mixed in solutions
ph 7+

27
Q

Transition metals

A

take+give off electrons randomly
cannot predict
roman numerals indicate

28
Q

hydrochloric acid

A

HCl

29
Q

Sulphuric acid

A

H2SO4

30
Q

Nitric acid

A

HNO3

31
Q

acid+metal

A

hydrogen+salt

32
Q

acid+metallic oxide

A

water+salt

33
Q

acid+hydroxide

A

water+salt

34
Q

acid+carbonates

A

salt+water+carbon dioxide

35
Q

acids

A

sharp taste
corrosive
ph 0-7

36
Q

Base

A

soapy feel
corrosive
ph 7-14

37
Q

newtons first law

A 
object rest-stay rest
object motion-stay motion
same speed+direction 
unless
acted upon by unbalanced force
38
Q

force

A

push
pull
twist
exerted on object

39
Q

measured

A

Newtons

40
Q

can change

A

shape
direction
speed

41
Q

2 groups

A

contact

field

42
Q

types of contact

A

friction
tension
compression

43
Q

effects of contact force

A 
object move
speed- up or down
change- direction
            - shape
rotate
44
Q

field force

A

action at distance

between 2 bodies

45
Q

common field force

A

gravitational
magnetic
electrostatic

46
Q

Gravitational force

A

force of attraction

objects have on one another due to mass

47
Q

greater mass

A

greater gravitational force

48
Q

gravitational force decreases

A

move further away from one another

49
Q

equation

A

Fg=mg

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