Chem Equation (1 Viewer)

[kazemagic]

Sup,
So for this one

I'm wondering am I supposed to know how this is formed? Like if I only knew the reactants, should I also know the exact formula of the product?

Thanks

 

[hayabusaboston]

Sup,
So for this one
View attachment 27300
I'm wondering am I supposed to know how this is formed? Like if I only knew the reactants, should I also know the exact formula of the product?

Thanks

yes. Considering the numbers you have on the LHS assists you in finding the RHS.

 

[kazemagic]

yes. Considering the numbers you have on the LHS assists you in finding the RHS.

alright thanks
so how should i get 2P2O5 ? How do I find out the subscript number for each element in the product?

Thanks

 

[hayabusaboston]

P2O5 is the empirical formula, thus 4P+5O2-->P4O10. use llimiting reageant, work out empirical formula first then calculate molar mass ratio of 1:2 and then multiply empirical formula by 2
to get 2P205.

 

[kazemagic]

P2O5 is the empirical formula, thus 4P+5O2-->P4O10. use llimiting reageant, work out empirical formula first then calculate molar mass ratio of 1:2 and then multiply empirical formula by 2
to get 2P205.

alrite thx
guess i dont need to know it for now cos i dont c limiting reageant anywhere in the index of conquering chem prelim book

 

[hayabusaboston]

alrite thx
guess i dont need to know it for now cos i dont c limiting reageant anywhere in the index of conquering chem prelim book

OH YOU'RE PRELIM?? lol I thought u were HSC for a sec and was wondering why u doing prelim stuff...

 

[Kurosaki]

Strong observation skills

 

[hayabusaboston]

Strong observation skills

ehh embarrassing hahaha

 

[Kurosaki]

Dw I'm blinder than a bat at times. Are you going to claw your way in English back up bro?

 

[hayabusaboston]

Dw I'm blinder than a bat at times. Are you going to claw your way in English back up bro?

Im afraid that is going to be supremely difficult. I felt highly optimistic before my first english test, then I did it and got results back and just thought "No, to hell with this. English is not stealing my life from me. this useless piece of shit will take up no more time than necessary to get 75-80."

It is too depressing to work at it anymore...
Unless I go good in next assessment then perhaps my motivation will return to me. Who knows. Right now I feel like in the HSC im going to write on english exam "Fuck you assholes". That must change >.<

 

[Kurosaki]

I hate how it auto counts . Learned it as second language and forced to do advanced grr

 

[hayabusaboston]

I hate how it auto counts . Learned it as second language and forced to do advanced grr

me too, but I chose to do advanced haha.

 

[russ3l]

Im afraid that is going to be supremely difficult. I felt highly optimistic before my first english test, then I did it and got results back and just thought "No, to hell with this. English is not stealing my life from me. this useless piece of shit will take up no more time than necessary to get 75-80."

It is too depressing to work at it anymore...
Unless I go good in next assessment then perhaps my motivation will return to me. Who knows. Right now I feel like in the HSC im going to write on english exam "Fuck you assholes". That must change >.<

My brother did absolutely no work for English and, I know for a fact that he was worse than you (because I've read some of your stuff), he got 80 as a hsc mark - 81 external, 79 internal.

I HAVE COMPLETE FAITH THAT YOU WILL GET NOTHING LESS THAT 82

And to show how extreme my brother's case was: I did part of the analysis for him...

Sorry to those out there that may feel bad about this comment :/ it was meant to for hayabusa.

 

[russ3l]

Back to the topic, starting on year 11 work aye kazemagic?

 

[hayabusaboston]

My brother did absolutely no work for English and, I know for a fact that he was worse than you (because I've read some of your stuff), he got 80 as a hsc mark - 81 external, 79 internal.

I HAVE COMPLETE FAITH THAT YOU WILL GET NOTHING LESS THAT 82

And to show how extreme my brother's case was: I did part of the analysis for him...

Sorry to those out there that may feel bad about this comment :/ it was meant to for hayabusa.

Oh wow dude thanks, you have lifted my mood and somewhat my spirits enormously! haha god I was feeling absolutely shit about myself, I feel alright now question though, where did u read my stuff from? My site?

 

[kazemagic]

Back to the topic, starting on year 11 work aye kazemagic?

yea more like rushing through it lol

 

[Aysce]

yea more like rushing through it lol

Big no-no. Understand the concepts - there is no need to rush, you have time. Take the time to question yourself why things happen and research, attain a greater understanding and develop an appreciation. Although I have no idea how good I actually am at chemistry, I think it will only be beneficial if you do this

 

[russ3l]

Oh wow dude thanks, you have lifted my mood and somewhat my spirits enormously! haha god I was feeling absolutely shit about myself, I feel alright now question though, where did u read my stuff from? My site?

You have a site!? haha. I've read through some of your threads and stuff, so it's not that much, but enough for me to make a good judgement. I'm so sure you wont get 75 because my brother was hoping to god for a 60.

 

[kat-]

stop derailing ops thread

 

[kazemagic]

Big no-no. Understand the concepts - there is no need to rush, you have time. Take the time to question yourself why things happen and research, attain a greater understanding and develop an appreciation. Although I have no idea how good I actually am at chemistry, I think it will only be beneficial if you do this

oh yea i try to do that, its just that i just skip all the stuff like uses of metals, history of periodic table lol