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GR9 End of Year > Science Exam > Flashcards

Science Exam Flashcards

1
Q

What is a mass/nucleon number?

A

The mass number (A), also called atomic mass number or nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus. The mass number is different for each different isotope of a chemical element.

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2
Q

What is the proton number?

A

The number of protons or electrons if the atom is evenly charged.

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3
Q

Metal + Acid =

A

Salt + Hydrogen

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4
Q

Acid + Base =

A

Salt + Water

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5
Q

Litmus Paper Properties

A

Red(acid) to Blue

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6
Q

Phenolphthalein

A

Colourless(acid) to Pink

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7
Q

Turmeric

A

Yellow(acid) to red

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8
Q

Methyl Orange

A

Red(acid) to Yellow

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9
Q

Natural Indicators

A

Colourless flower petals, Leaves, red cabbage, grapes

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10
Q

What is a titration

A

Have a set amount of a base and put some indicator in, then using a burette drip acid in until the indicator changes colour. Repeat until you have an accurate result. The first trail is a rough trail and the next 3 are accurate.

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11
Q

Properties of Bases

A
  • Taste Bitter

- Feel slippery

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12
Q

Properties of Acids

A
  • Taste Sour
  • Can conduct electricity
  • Acids usually start with hydro
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13
Q

How to test for hydrogen?

A

Use lit split and should make high pitch popping sound

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14
Q

How to test for hydrogen?

A

Use lit split and should make a high pitch popping sound

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15
Q

Sulphuric Acid

A

H2SO4

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16
Q

Acetic Acid

A

CH3COOH

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17
Q

Copper sulfate

A

CuSO4

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18
Q

Sodium carbonate

A

Na2CO3

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19
Q

Copper Oxide

A

CuO

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20
Q

Hydrocloric acid

A

HCL

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21
Q

Ethanol

A

C2H5OH

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22
Q

Examples of unreactive substances

A

Gold, copper, silver, etc

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23
Q

Nitric Acid Formula

A

HNO3

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24
Q

Naming Acid: H+Element

A

Hydro + element + ic acid

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25
Q

Naming Acid: H + O + Element

A

Element + ic acid

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26
Q

Naming all bases

A

Element + Hydroxide

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27
Q

Carbonic Acid

A

H2CO3`

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28
Q

Phosphoric Acid

A

H3PO4

29
Q

Sodium hydroxide

A

NaOH

30
Q

Potassium hydroxide

A

KOH

31
Q

Magnesium hydroxide

A

Mg(OH)2

32
Q

Calcium hydroxide

A

Ca(OH)2

33
Q

Neutralization Reaction

A

A reaction in which an acid and a base react in an aqueous solution to produce a salt and water:

34
Q

Transverse Waves

A

Move perpendicular to the origin

35
Q

Frequency

A

The number of waves pass a certain point in a amount of time. 1 Hz = 1 wave per second

36
Q

Time period equasion

A

f = 1/t

37
Q

Longitudinal waves

A

Direction of travel is parralel to direction of wave

38
Q

Wavelength

A

Distance from crest to crest

39
Q

Calculate wave speed

A

speed = f * wavelength

40
Q

Law of reflection

A

When a wave is reflected i = r

41
Q

Electro-magnetic spectrum low to high frequency

A

Radio waves (radios) –> microwaves (microwaves) –> inferred (heat and night vision) –> visible light –> x-rays –> ultraviolet (sterilization) –> gamma rays (kill cancer).

42
Q

How does diffraction work

A

diffraction is where light bends when moving through a gap. If the gap is as small or smaller than the wave length then true diffraction occurs

43
Q

Snell’s law

A

(index of refraction of material a)(sine of light angle in material a) =(index of refraction of material b)(sine of light angle in material b)

44
Q

Main Parts of a cell and specific parts for animal and plant?

A
  1. PLASMA MEMBRANE/ CELL MEMBRANE
  2. CYTOPLASM
  3. NUCLEUS

Only Animal
Cilia and flagella

Only Plant
Cell wall
Central vacuole
Chloroplasts

45
Q

What does the endoplasmic recticulum do?

A

The transport system of the cell.

Rough ER includes ribosomes

46
Q

What do ribosomes do?

A

Factory - ribosomes produce protein

47
Q

What do lysosomes do?

A

Digest parts of the cell including corrupt parts of the cell, food and viruses.

48
Q

What does the mitochondria do?

A

The powerhouse of the cell.

Releases food energy to power the cell.

49
Q

What do vacuoles do?

A

Vacuoles store food and water.

50
Q

What does the nucleus do?

A

It is the brain of the cell containing the DNA which allows for protein to be made.

51
Q

Hierarchy tree

A 
Species
Genus
Family
Order
Class
Phylum
Kingdom
Domain
52
Q

3 main domains

A

Eukarya
Archaea
Eubacteria

53
Q

Eukarya Characteristics

A

Eukaryotic organisms that contain a membrane-bound nucleus

54
Q

Archaea Characteristics

A

Prokaryotic cells lacking a nucleus and consist of the extremophiles -Live in exreme conditions

55
Q

Eubacteria Characteristics

A

prokaryotic cells lacking a nucleus and consist of the common pathogenic forms  -Consist of virus’s

56
Q

Eukarya Kingdom

A

Protista
Fungi
Plantae
Animalia

57
Q

Protista Characteristics

A

Single cellular
No cell wall
Eat - Photosythisis

58
Q

Fungi Characteristics

A

Multi cellular
cell wall
no chloroplasts
Eat- Absoribtion (decaying)

59
Q

Plantae Characteristics

A

Multi cellular

Eat-photosynthesis

60
Q

Animalia Characteristics

A

Multicellular
Move by cilia and flagella or muscles.
Eat - ingestion

61
Q

Refractive index and critical angle equation

A

index = 1/sin(critical angle)

62
Q

Will light bend towards or away from normal?

A

Less to more dense = towards normal, more to less dense = away from normal. Density = refractive index

63
Q

Check for co2?

A

Limewater milky or bubbles

64
Q

What colour is Copper Sulphate

A

Blue

65
Q

Find total internal reflection

A

At what angle of incidence is the angle of refraction 90 degrees? Can use Snell’s law to find.

66
Q

What is dispersion?

A

When light refracts into water. The refractive index is a function of light, therefore, the light is split into colors: RYGBV. Red has the longest wavelength.

67
Q

Speed of light in vacuum?Air?

A

299,792 kilometres per second

299,700 km/s in air

68
Q

Ammonia

A

NH3

69
Q

Sperm Cell

A

The nucleus in head and lots of mitochondria in abdomen and flagella tail

GR9 End of Year (3 decks)

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