6: Catalysts Flashcards
1
Q
How can the rate of reaction be increased?
A
By increasing the: temperature concentration pressure surface area
Or adding a catalyst
2
Q
What is a catalyst?
A
a substance which changes the rate of reaction but is unchanged at the end of the reaction
3
Q
Are all catalysts the same?
A
No, catalysts are specific to particular reactions. A substance that acts as a catalyst for one reaction may not be able to act as a catalyst for a different reaction
4
Q
What is hydrogen peroxide used for?
A
Bleaching hair
Industry
Bleach wood pulp for making paper
5
Q
Equation for hydrogen peroxide
A
hydrogen peroxide = water + oxygen
2H2O2 = 2H20 + O2
6
Q
What substance acts as a catalyst for hydrogen peroxide?
A
Powdered manganese(IV) oxide, MnO2
