Climate
What is the greatest human produced greenhouse gas?
CO2
Is magnesium fluoride soluble or insoluble?
Insoluble
What scientist coined the term "animalcules" to describe single-celled organisms?
Antonie van Leeuwenhoek
As a rock falls of a cliff, what happens to its Ep and Ek values?
Ep decreases and Ek increases.
How many electrons are in a calcium ion?
18
What biome has the least biodiversity?
Tundra
What group are the noble gases is and why are they stable?
Group 18, stable because they have a full outer shell
List the three points of the cell theory.
All living things are made of cells, all cells come from pre-existing cells, cells are the smallest unit of life
What is the second law of thermodynamics?
No energy transfer is 100% efficient.
What two organelles are found in animal cells but not plant cells?
Lysosomes and centrioles.
The specific heat capacity of copper is 0.38 J/gC. The specific heat capacity of iron is 0.45 J/gC. 12g of copper and 12g of iron are heated to the same temperature and then allowed to cool. Which substance would cool down faster?
copper
What is the mass of 6.85mol of fluorine gas?
260g
If the field of view on low (10x) is 7.3 mm, what is the field of view on high (400x)?
0.18mm
On a pendulum, when does Ep=Ek?
At the middle of the swing (mid-height).
A plant has not been watered in days. What happens to the turgor pressure in the plant and what is the resulting shape of its guard cells?
Turgor pressure decreases and guard cells close.
How would the temperature line for a climate graph in Australia differ from a region in Europe with the same overall climate?
Which of the following compounds would not change the colour of litmus paper and would not conduct electricity? Why?
HCl(aq), NaCl(aq), N2O(aq), or NaOH(aq) ?
N2O(aq) because it is neutral molecular.
Calculate the surface area to volume ratio of a rectangular object with the dimensions 3.2cm x 9.6cm x 7.1cm.
1.1
An object falls off of a cliff for 12.4 seconds. What speed does the object reach right before it hits the ground? Answer with correct significant digits and units.
122 m/s
An arrow is shot straight into the air with a speed of 33km/h. What height does the arrow reach? Answer with correct units and significant digits.
4.3m
Define the Coriolis Effect.
The deflection of air currents or ocean currents due to the Earth's rotation.
Balance the following reaction. You will need to predict the products before balancing.
Butane (C4H10(g)) burns in oxygen gas.
2C4H10 + 13O2 -> 8CO2 + 10H2O
Explain (in detail) how plants move water up their stem. Use the terms adhesion, cohesion, transpiration pull, active transport, osmosis, xylem and root pressure, and stomata.
Minerals are actively transported into roots (low to high). Water follows via osmosis, which creates root pressure, pushing water into the xylem. Simultaneously, water evaporates out of the stomata, creating a transpiration pull. This pull brings water up the xylem. Water counteracts gravity because of adhesion (attraction to xylem walls) and cohesion (attraction to other water molecules).
Grab scrap paper: Draw a distance-time graph and a speed-time graph that both represent negative acceleration.
See Ms. Kooner's drawing on the board.
Grab scrap paper: Draw the bond between aluminum and oxygen using electron dot or Bohr diagrams. If electrons are being shared, circle them. If electrons are being transferred, use arrows. Write any resulting ion charges.
See Ms. Kooner's drawing on the board.