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Flashcards in Rates And Energy Deck (10):
1

what is the formula for the rate of the reaction?

amount of reactant used OR amount of product formed ÷ time

2

reactions can only happen when particles of reactants collide, what is this called?

the collision theory

3

how can we increase the rate of collisions in particles (increase the rate of reactions)

- increase temperature
- increase surface area
- increase concentration of solutions or pressure of gasses
- presence of catalysts.

4

how does increasing the surface area of a reactant increase the rate of reaction?

allows for more area of collisions.

5

what is the effect of temperature to particles?

it increases the amount of kinetic energy which means:
- particles collide more often
- particles collide with more energy.

6

how does increasing the pressure or concentration tease the rate of reaction?

the closer together the particles are, the more frequent collisions are.


think of it like a corridor, if they're are more people in the corridor you're more likely to bump into someone else.

7


why is it potentially unsafe to use transition metals in medicine?

some transition metals are toxic and could potentially contaminate the drug.

8

exothermic reactions heat up what?

heats up the surroundings.

9

endothermic do what?

take heat from the surroundings.

10

anhydrous copper sulfate can be used to test for what?

water.