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GR9 End of Year > Science Exam > Flashcards

Science Exam Flashcards

(69 cards)

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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
Naming Acid: H + O + Element
Element + ic acid
26
Naming all bases
Element + Hydroxide
27
Carbonic Acid
H2CO3`
28
Phosphoric Acid
H3PO4
29
Sodium hydroxide
NaOH
30
Potassium hydroxide
KOH
31
Magnesium hydroxide
Mg(OH)2
32
Calcium hydroxide
Ca(OH)2
33
Neutralization Reaction
A reaction in which an acid and a base react in an aqueous solution to produce a salt and water:
34
Transverse Waves
Move perpendicular to the origin
35
Frequency
The number of waves pass a certain point in a amount of time. 1 Hz = 1 wave per second
36
Time period equasion
f = 1/t
37
Longitudinal waves
Direction of travel is parralel to direction of wave
38
Wavelength
Distance from crest to crest
39
Calculate wave speed
speed = f * wavelength
40
Law of reflection
When a wave is reflected i = r
41
Electro-magnetic spectrum low to high frequency
Radio waves (radios) --> microwaves (microwaves) --> inferred (heat and night vision) --> visible light --> x-rays --> ultraviolet (sterilization) --> gamma rays (kill cancer).
42
How does diffraction work
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
Snell's law
(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
Main Parts of a cell and specific parts for animal and plant?
1. PLASMA MEMBRANE/ CELL MEMBRANE 2. CYTOPLASM 3. NUCLEUS Only Animal Cilia and flagella Only Plant Cell wall Central vacuole Chloroplasts
45
What does the endoplasmic recticulum do?
The transport system of the cell. | Rough ER includes ribosomes
46
What do ribosomes do?
Factory - ribosomes produce protein
47
What do lysosomes do?
Digest parts of the cell including corrupt parts of the cell, food and viruses.
48
What does the mitochondria do?
The powerhouse of the cell. | Releases food energy to power the cell.
49
What do vacuoles do?
Vacuoles store food and water.
50
What does the nucleus do?
It is the brain of the cell containing the DNA which allows for protein to be made.
51
Hierarchy tree
``` Species Genus Family Order Class Phylum Kingdom Domain ```
52
3 main domains
Eukarya Archaea Eubacteria
53
Eukarya Characteristics
Eukaryotic organisms that contain a membrane-bound nucleus
54
Archaea Characteristics
Prokaryotic cells lacking a nucleus and consist of the extremophiles -Live in exreme conditions
55
Eubacteria Characteristics
prokaryotic cells lacking a nucleus and consist of the common pathogenic forms  -Consist of virus's
56
Eukarya Kingdom
Protista Fungi Plantae Animalia
57
Protista Characteristics
Single cellular No cell wall Eat - Photosythisis
58
Fungi Characteristics
Multi cellular cell wall no chloroplasts Eat- Absoribtion (decaying)
59
Plantae Characteristics
Multi cellular | Eat-photosynthesis
60
Animalia Characteristics
Multicellular Move by cilia and flagella or muscles. Eat - ingestion
61
Refractive index and critical angle equation
index = 1/sin(critical angle)
62
Will light bend towards or away from normal?
Less to more dense = towards normal, more to less dense = away from normal. Density = refractive index
63
Check for co2?
Limewater milky or bubbles
64
What colour is Copper Sulphate
Blue
65
Find total internal reflection
At what angle of incidence is the angle of refraction 90 degrees? Can use Snell's law to find.
66
What is dispersion?
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
Speed of light in vacuum?Air?
299,792 kilometres per second | 299,700 km/s in air
68
Ammonia
NH3
69
Sperm Cell
The nucleus in head and lots of mitochondria in abdomen and flagella tail

GR9 End of Year (3 decks)

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