Juliakinga
Badges: 10
Rep:
?
#1
Report Thread starter 1 year ago
#1
Just double checking,
In a chemical reaction, if more bonds are broken than new bonds are made, is this a endothermic reaction?
And then, in a chemical reaction where more bonds are made than broken, is this a exothermic reaction?
0
reply
Goofballx69
Badges: 18
Rep:
?
#2
Report 1 year ago
#2
Just remember MEXBEND. Making exothermic...Breaking endothermic
(Original post by Juliakinga)
Just double checking,
In a chemical reaction, if more bonds are broken than new bonds are made, is this a endothermic reaction?
And then, in a chemical reaction where more bonds are made than broken, is this a exothermic reaction?
4
reply
Juliakinga
Badges: 10
Rep:
?
#3
Report Thread starter 1 year ago
#3
Ah okay, thank you so much!

(Original post by Rocky Handsome)
Just remember MEXBEND. Making exothermic...Breaking endothermic
0
reply
Decoder
Badges: 7
Rep:
?
#4
Report 1 year ago
#4
(Original post by Rocky Handsome)
Just remember MEXBEND. Making exothermic...Breaking endothermic
Neat.
0
reply
Goofballx69
Badges: 18
Rep:
?
#5
Report 1 year ago
#5
My pleasure
(Original post by Juliakinga)
Ah okay, thank you so much!
0
reply
jayt.03
Badges: 2
Rep:
?
#6
Report 1 year ago
#6
watch freesciencelessons on that part on youtube the guy is really good at explaining it in a simple way
0
reply
koolkid10188
Badges: 2
Rep:
?
#7
Report 1 year ago
#7
WHO DOES OCR SCIENCE?? any idea on whats coming up
(Original post by jayt.03)
watch freesciencelessons on that part on youtube the guy is really good at explaining it in a simple way
0
reply
jayt.03
Badges: 2
Rep:
?
#8
Report 1 year ago
#8
if you do ocr check the exam specification only for paper 1, that is whats going to come up tommorow, you can revise paper 2 after

(Original post by koolkid10188)
WHO DOES OCR SCIENCE?? any idea on whats coming up
0
reply
ChemistryWebsite
Badges: 10
Rep:
?
#9
Report 1 year ago
#9
(Original post by Juliakinga)
Just double checking,
In a chemical reaction, if more bonds are broken than new bonds are made, is this a endothermic reaction?
And then, in a chemical reaction where more bonds are made than broken, is this a exothermic reaction?
It's not about the number of bonds broken and made.

Just calculate the overall energy change = {sum of energy released from all new bonds made} - {sum of energy required to break all the bonds that were broken]
If you gained more energy than you used, the reaction is exothermic.
If you required more energy than you gained the reaction is endothermic.
0
reply
finnjedoo
Badges: 1
Rep:
?
#10
Report 1 year ago
#10
any of you have an idea what will come up?
0
reply
eanqae
Badges: 9
Rep:
?
#11
Report 1 year ago
#11
(Original post by koolkid10188)
WHO DOES OCR SCIENCE?? any idea on whats coming up
do you do triple? if you do, my teacher predicted that

the titration calculation
bonding types
nanoparticles
electrolysis
comparing molecular models (so like ball and stick model and displayed formula etc.)
dot and cross diagrams
chromatography

all have a high chance of coming up. she predicted a lot of topics that came up in the bio triple paper correctly so i'm clinging onto this^
2
reply
Goofballx69
Badges: 18
Rep:
?
#12
Report 1 year ago
#12
even my teacher did..and the soluble and insoluble salts
(Original post by anexeqa)
do you do triple? if you do, my teacher predicted that

the titration calculation
bonding types
nanoparticles
electrolysis
comparing molecular models (so like ball and stick model and displayed formula etc.)
dot and cross diagrams
chromatography

all have a high chance of coming up. she predicted a lot of topics that came up in the bio triple paper correctly so i'm clinging onto this^
0
reply
koolkid10188
Badges: 2
Rep:
?
#13
Report 1 year ago
#13
no i do combined but thanks anyways.. what college/sixth form y'all planning to go
0
reply
Shania Paul
Badges: 10
Rep:
?
#14
Report 1 year ago
#14
(Original post by koolkid10188)
no i do combined but thanks anyways.. what college/sixth form y'all planning to go
in cambridge
0
reply
Alisha999
Badges: 16
Rep:
?
#15
Report 1 year ago
#15
Is this an Alevel Chemistry thread??

When are the OCR Chemistry exams?
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

If you haven't confirmed your firm and insurance choices yet, why is that?

I don't want to decide until I've received all my offers (39)
40.63%
I am waiting until the deadline in case anything in my life changes (21)
21.88%
I am waiting until the deadline in case something in the world changes (ie. pandemic-related) (5)
5.21%
I am waiting until I can see the unis in person (9)
9.38%
I still have more questions before I made my decision (5)
5.21%
No reason, just haven't entered it yet (6)
6.25%
Something else (let us know in the thread!) (11)
11.46%

Watched Threads

View All