AS Chemistry OCR B (Salters) DF - Catalysts

A quiz on catalysts from Unit 1 Module 2 of Salters Chemistry AS.

?
  • Created on: 17-12-08 13:18
What is the correct definition of a catalyst?
A catalyst speeds up a chemical reaction, but can be recovered chemically unchanged at the end of a reaction.
1 of 6
Definition: "The speeding up of a chemical reaction using a catalyst"
Catalysis
2 of 6
Catalysts can often be reused, and only a tiny amount is needed for a large reaction. Why is this?
Because they are either chemically unchanged by the end of the reaction, or have reacted and remade.
3 of 6
Catalysts are ......... which means they will ............
specific to certain reactants, often only work on a single reaction.
4 of 6
What does the term "homogeneous catalyst" mean?
The catalyst is in the same physical state as the reactants.
5 of 6
Catalysts can.............so they don't work anymore.
be poisoned
6 of 6

Other cards in this set

Card 2

Front

Definition: "The speeding up of a chemical reaction using a catalyst"

Back

Catalysis

Card 3

Front

Catalysts can often be reused, and only a tiny amount is needed for a large reaction. Why is this?

Back

Preview of the front of card 3

Card 4

Front

Catalysts are ......... which means they will ............

Back

Preview of the front of card 4

Card 5

Front

What does the term "homogeneous catalyst" mean?

Back

Preview of the front of card 5
View more cards

Comments

Matthew Hamer

Report

nice

beth

Report

helpful

Lauren Lovick

Report

helpful (even though I am doing AQA chem) It was quite good because the questions were not too easy

pooja patel

Report

very helpful thanks!

Jhyzone

Report

i see your tricky strategy!

I'm off to revise more DF! :D

Thanks for this!

Mazin

Report

lol that was funny but nice and concise ;]

Taslima Baksh

Report

very good but please make more- i need it!!!

Emma

Report

how do you find out the right answers if you get something wrong? Very good though :)

fmPerkins

Report

That was really helpful! I think I need to go back to Ideas and read up on homogeneous and heterogeneous :)

Nazmeen Chowdhury

Report

Really Good!!! will try it again when it's closer to exam time!

Elana Bryan

Report

Really good! A very useful recap!

Marianne Bradley

Report

Useful, thank you :)

Beenash

Report

Thanks, really helped! :)

WhatsHisFace

Report

Thanks, really helped! :)

Em

Report

Really useful, it was good that the questions weren't too easy, but they summarised the key points!!

Francesco D'Alessio

Report

Really helpful , 

Needed this.

Cesi  

claude bethy

Report

good

Vicky

Report

2wrong

i say pretty good for me :)

AnnaLouise

Report

It was good thank you :-) x

kayley lucken

Report

question 6 is wrong it should be aBsorbtion not aDsorbsion

kidun

Report

Really good! A very useful :)

Similar Chemistry resources:

See all Chemistry resources »See all Acids, bases and salts resources »