Advance chem18 cards

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1

What does catayst mean?????

Substance that increase the rate of reaction without itself being used up in the reaction

2

What does enzymes mean????

Bological catalyst that increase speed of reactions essential for life

3

What is activation energy???

Energy needed to start the reaction

4

What are inhibitors???

Slow the rate of reactions

5

What is orientation???

Must be oriented in a favorable position that allows bonds to break and atoms to rearrange

6

What is effective collision????

Leads to a formation of products

7

What is ineffective collision???

Does not lead to formation of products

8

What is the collision theory.????

Atoms,ions, and molecules can react to form products i

9

What is reaction rate???

Rate at which reactants disappear and products appear

10

What is reaction mechanisms???

Series of steps that leads from reaction to products m

11

What are 2 types of energy????

Potential and kinetic energy


13

14

What is kinetic energy????

Energy of motion

15

What is endothermic energy??

Energy is absorbed

16

What is exothermic energy???

Products contain less energy than the reactants, heat is given out to the surroundings

17

What is enthalpy change???

At a more advanced level the heat change which is delta H

18

What are the factors of the rate of the reaction?????

Nature of reactant Temp Concentration Surface area Catalyst and inhibitors