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Chemistry
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Pot Pouri
100

The total mass of the reactants in a chemical reaction equals the total mass of the products.

What is the law of conservation of mass

100
The difference between speed and velocity is speed is a _________ quantity.
What is scalar?
100
This organelle is responsible for protein synthesis.
What is the ribosome.
100
The difference between the amount of incoming and outgoing radiation from the Earth's surface and the atmosphere.
What is the Net Radiation Budget?
100

The integer equal to the total number of protons and neutrons in the nucleus of an atom.

What is atomic mass or mass number?

200

This type of chemical reaction that occurs when two ionic compounds in solution produce a solid precipitate.

What is a double replacement reaction

200
The amount of energy an object gains is 100J of work is done on it.
What is 100 J?
200

The term used to describe a plant cell placed in a hypertonic solution.

Plasmolysis

200
The solid portion of the Earth composed of rocks, minerals, and elements.
What is the lithosphere?
200

The formula for boric acid

What is H3B03 (aq)

300

The mass of 5.00 mol of NaOH(s).

What is 200 g.

300
When the change in magnitude of the velocity is negative and the direction is East.
What is negative acceleration?
300

The specialized cells that move water from the roots to the leaves of a plant.

What is Xylem

300
Four of the eight types of radiation coming from the sun.
What are radio, radar, microwaves, infrared, visible light, ultraviolet, x-ray, gamma, cosmic?
300
The amount of energy required to raise the temperature of 1g of a substance by 1 degree Celcius.
What is Specific Heat Capacity?
400

The coefficients required to balance the combustion reaction of methane.

CH4 (g) + 2O2 (g) -->CO2 (g) + 2H2O (g)

400

In a toy, a 92.4 g ball rolls into a spring and compresses the spring. If the ball is rolling at 4.28 m/s when it collides with the spring and, at maximum compression, the spring is storing 0.560 J of elastic potential energy, with what efficiency is the ball’s kinetic energy converted into elastic potential energy of the spring?

66.2%

400

Describe how xylem sap moves great distances upwards against the force f gravity.

What is cohesion, adhesion, root pressure and the pull of transpiration

400
The angle between a ray falling on the surface and a line perpendicular to that surface.
What is angle of incidence?
400

Given the isotopic notation 4822Ti, identify the following:

a) Name of the isotope
b) Mass number
c) Atomic number
d) Number of protons
e) Number of neutrons.

a) titanium-48
b) 48
c) 22
d) 22
e) 48−22=26

500

Complete the reaction between lead (II) nitrate and potassium iodide.

Pb(NO3)2(aq) +  2KI(aq) --> 2KNO3 (aq)+ PbI2(s)

500
How long it will take a girl running at a velocity of 2.50 m/s to reach 4.00 m/s is she is accelerating at a rate of 0.500 m/s2.
What is 3 seconds.
500

Describe ALL RELEVANT STEPS of how plant roots are able to take in water.

Sugars, minerals and other nutrients are pumped into the phloem via active transport. As the sugar concentration increases, water follows via osmosis.

500

A pot is filled with 2.0 kg of water and heated to 100°C, at which point it starts to boil. Calculate the energy that was used to boil away all 2.0 kg of the water.

4.5 x 103 kJ

500

The maximum speed a 2.00 kg ball suspended from the ceiling from a 1.50 m long rope acquires when it is dropped from a position where the rope was horizontal to the ground.

What is 5.42 m/s?