Foundational skills
How many sig figs are in 7.820?
4
What is the difference between a prokaryotic and eukaryotic cell? Give an example for each.
Prokaryotic = no nucleus, for example bacteria
Eukaryotic = nucleus, for example skin cells
What is the difference between scalar and vector quantities?
Scalar: Magnitude
Vector: Magnitude and Direction
How many protons are in an atom of Potassium?
19
What are Ionic and Molecular Compounds?
Ionic = 1 medal and 1 non-medal, Molecular = 2 non-medals.
How many sig figs are in 0.109?
3
What is the cytoplasm and what is it's role.
It is a jelly-like material where all of the organelles in the cell are suspended. It essentially gives the cell it's shape.
Leland runs 100. meters in 12.5 seconds. What is his average speed?
8.00 m/s
Draw a Bohr diagram of a sodium atom
See answer sheet for correct drawing
Name this Ionic compound, CuS.
Copper(II) Sulfide
Convert 1000m into km
1 km
What is endocytosis?
Endocytosis is a process where the cell membrane collapses around molecules that are too large so they can get in the cell.
Jocelyn does 4575 joules of work while exerting a force of 350 newtons on a car when pushing it. How far did Jocelyn push the car?
13m
How many electrons in a chlorine ion and what is the charge?
18 electrons, 1- charge
Write the chemical formula for Heptafluorine Dinitride.
F7N2
convert 40.1 x 10-7 to decimal notation
0.00000401
What is the difference between pinocytosis and phagocytosis?
They are both engulfing processes but pinocytosis allows the cell to let in fluids. The main purpose is to absorb the dissolved molecules in the fluid. Phagocytosis allows the cell to engulf solids surrounding them to bring them in the cell.
Leland's Hellcat starting at rest reaches a velocity of 95.0 km/h [N] in 1.95 seconds. What is the Hellcat's average acceleration?
26.4 m/s2
How many mols are in 1.5 Kg of Lithium Oxide?
29.88 mols
Balance the chemical equation by adding coefficients. KOH + CO2 -> K2CO3 + H2O
2KOH + 1CO2 -> K2CO3 + H2O
K 1x2 = 2 K 2
O 3+1=4 O 4
H 1x2=2 H 2
C 1 C 1
Convert 420 km/hour into m/s
120m/s
Why shouldn't you drink salt water when dehyrdrated.
Because Salt water is a hypertonic solution, to equalize the concentration, water will move out of the cell via osmosis because it cannot move freely in the cell. This will then lead to you becoming more dehydrated.
Jocelyn's cat Gizmo, with a gravitational potential energy of 75 joules stands on a fridge at the height of 250cm. What is the mass of Gizmo.
3.0 kg
What is the mass of 2.0 mols of H2O
36g
Predict the product of the chemical reaction Na(s) + P4(s) ->
12Na(s) + P4(s) -> 4Na3P(s) Ionic compound, Solid, Formation reaction
Na 1x3=3x4=12 Na 3x4=12
P 4 P 1x4=4