Chemisty, Physics, & Bio Gr 10

Question 1

Polyvalet metals

Answer 1

Metals that have a diff ion charge

Ex titanium

Question 2

Molecular compounds

Answer 2

When 2 non metals share their electrons and form what is called a covalent bond

Don’t use charges uses naming prefixes

Question 3

Diatomics (type of molecular compounds

Answer 3

7 elements that exist naturally as a pair

Start At 7 make a 7

Question 4

Polytomics

2

Answer 4

Phosphorus p4 ans sulfur s8

Question 5

Organic compounds

Answer 5

Chemical involving carbon

CH4-methane

Question 6

Acid

Answer 6

Compounds that are dissolved in water (aqueous) and contain Hydrogen

Question 7

Bass

Answer 7

Aqueous compounds that contain hydroxide

Question 8

Evidence for chemical change

Answer 8

Colour change
Energy released or absorbed
Precipiate formed
Bubble formed

Question 9

Exothermic

Answer 9

Energy is released

Question 10

When energy is absorbed In a chemical rxn

Answer 10

Endothermic

Question 11

Law of conservation of mass

Answer 11

Atoms can. Not be created or destroyed

Question 12

Factors that effect reaction rate

Answer 12

Temp- more or less colliding electrons
Surface area- more partials available
Concentration- more partials
Catalyst- provides a new rxn pathway

Question 13

Neutralization

Answer 13

A DR rxn which a reactant is an acid and the other is a bass

Question 14

pH scale explain

Answer 14

0-14
0-6 - basic
7- neutral
8-14 - acidic

Question 15

How many sig digs should you put In a answer

Answer 15

Lowest given in the question

Question 16

Vf = ?

Answer 16

Vi + ta

Question 17

Law of inertia

Answer 17

Object in motion stays in motion, objects at rest stay at rest unless acted open by an outside force.

Question 18

Law of force

Answer 18

F=ma

Question 19

Force comes in pairs

Answer 19

Every action there is a equal and opposite rxn

Question 20

In a distance time grape slope=

Answer 20

Speed

Question 21

In a speed time graph slope is

Answer 21

Acceleration

Question 22

Scalers

Answer 22

Measurement that only include magnitude

Question 23

Vector

Answer 23

Include magnitude and direction

Question 24

Velocity =

Answer 24

Displacement/time

Question 25

Biosphere

Answer 25

Thin layer of earth that has conditions suitable for life

Question 26

Atmosphere

Answer 26

Layer or gases that surround the earth

Question 27

Lithosphere

Answer 27

Earths crust solid potion of earth

Question 28

Hydrosphere

Answer 28

All the wAter on earth

Question 29

What is the atmosphere made up of

Answer 29

78% nitrogen 21% oxygen 1% other

Includes atmospheric dust

Question 30

Layers of atmosphere

Answer 30

Earth
Troposphere 
Stratosphere 
Mesosphere 
Thermosphere

Question 31

Angle of inclination

Answer 31

Angle of the earth

Question 32

Angle of incidence

Answer 32

Angle that the sun hit the earth

Question 33

Direct evedence

Answer 33

Indicates global warming occurring with actual numbers

Question 34

Indirect evidence

Answer 34

Seems to support the idea but no real direct measurment of temp

Question 35

Carbon sinks

Answer 35

Removes co2

Dissolving in the ocean

Question 36

Carbon sources

Answer 36

Put co2 into air

Fossil production and combustion weathering of rock and cellular respiration

Question 37

Sustainability

Answer 37

Biological systems remain diverse and productive

Question 38

Acid rain

Answer 38

When sulfur goes Into the atmosphere in waster molecules and comes down as acidic rain.

Question 39

Carrying compacitity

Answer 39

The maximum number of individuals that can be supported in an ecosystem

Question 40

Ionic compound

Answer 40

+ ion transfers electrons to a -ion to form a strong bond.

Cross charges

Question 41

Bio accumulation

Answer 41

The accounting of a substance such as a toxic chemical in various tissues of a living organism

Question 42

Bio magnification and bio amplification

Answer 42

When the toxins get higher levels when it goes up the food chain

Question 43

Extinct species

Answer 43

No longer existence that has ended or died out

Question 44

Extirpated species

Answer 44

To remove or destroy totally. Exterminated

Question 45

Threatened species

Answer 45

They are vulnerable to endangerment in the near future

Question 46

Vulnerable species

Answer 46

A species of animals or plants which are likely to come i

Endangered unless something changes

Question 47

Endangered species

Answer 47

is a species of aniamal or plant that is seriously at risk or extinction