Chemistry
What is the molar mass of sodium hydroxide?
40.0 g/mol
Give an example of a scalar quantity
time, distance, speed
What is the function of the mitochondria?
convert glucose into energy
Which layer of the atmosphere do we find the ozone layer
statosphere
Xylem tissue transports....
water
Name N2O
dinitrogen monoxide
You use 10 N of force to move an object 3 m. How much work was done?
30 J
What layer of the plant leaf would you find most chloroplasts?
palliside layer
What is the angle of incidence at the equator?
0
The scientist who thought atoms were solid spheres was
Dalton
What type of reaction is CH4 + 2O2 --> CO2 + 2H2O
combustion
A person walks 10m E and then 15m W. What is the displacement
-5m
What organelle packages things into vesicles?
What causes wind?
Movement of air from high pressure to low pressure
Roots growing away from light is an example of...
negative phototropism
NaCl + AgF --->
Predict the products
NaF + AgCl
What does the area under speed - time graph tell you?
distance
A cell is placed in an unknown solution. The cell shrinks. What type of solution is it? (hyper/hypo/iso)
hypertonic
Material A has a specific heat capacity of 2 J/gC and material B has a specific heat capacity of 3 J/gC. Which material will cool down faster?
Material A
The chemical formula for sodium carbonate is...
Na2CO3
What is the name of HClO2
Chlorous acid
A rock is dropped off a cliff. The cliff is 10m high. What is the speed the rock fell?
14 m/s
Two cells are cubes. Cube A has side lengths 2 cm long and Cube B has side lengths 4 cm long. Which has a larger surface area to volume ratio?
Cube A
Calculate the energy required to heat 750 g of water from 34.0 degrees Celsius to 91.0 degrees Celsius
178695 J (1.79 x 10^5 J)
A person walks at a speed of 5 km/h. They walk 7 Km. How long does that take?
1.4 hours