20 !
it's all true and false questions! even if you can only answer one-- i would deeply appreciate

1. the temperature of a system is inversely related to the rate of a chemical reaction. that is, as the temperature of a chemical reaction increases, the rate of the reaction decreases.
true or false

2. if reactant particles collide with sufficient kinetic energy, the collision will be effective and the reactants will convert to products.
true or false

3. in an energy diagram for a chemical reaction, the activation energy equals the overall change in energy.
true or false

4. in the following diagram, the red line describes a reaction that uses a catalyst.

true or false

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)

(b) which contains higher levels of vitamin b, oranges or spinach?

explanation:

you can eliminate a, c, and d because they are questions based on opinions.

it is b that is the answer.

i believe the answer is three water molecules