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Need help balancing chemical equations

K2Cr207 + SnCl2 + HCL > CrCl3 + SnCl4 + KCl + H2O

using oxidation numbers please

January 15, 2014

13 Comments • Newest first

Dorks

Cr changes from +6 to +4 = red
Sn changes from +2 to +4 = ox

I don't wanna balance it for you

Reply January 15, 2014 - edited
ishimaruchan

OMG I've been trying to balance this stupid equation using oxidation numbers. You can just balance it by inspection >.<

[url=http://i.imgur.com/p5L7rz8.jpg]oxidation numbers are at the bottom[/url]. You can see that Cr goes from +6 to +3 and Sn goes from +2 to +4.

Reply January 15, 2014 - edited
Kinshima

EDIT: Never mind, whoops.

Reply January 15, 2014 - edited
Neuro

[quote=iShotBunny]http://answers.yahoo.com/question/index?qid=20100606123331AAPUVIZ[/quote]

oxidation numbers m8

Reply January 15, 2014 - edited
iShotBunny

http://answers.yahoo.com/question/index?qid=20100606123331AAPUVIZ

Reply January 15, 2014 - edited
ishimaruchan

Ah, give me a minute to write this out

Reply January 15, 2014 - edited
Neuro

[quote=CathySenpai]if youre requesting so much, do it yourself[/quote]

i can't thats why im making this thread

@ishimaruchan : yes, but i can't balance after the getting the electrons to equal, are their procedures to make balancing easier?

Reply January 15, 2014 - edited
ishimaruchan

Are you familiar with the rules for assigning oxidation states/number?

Reply January 15, 2014 - edited
ghettobuddha96

first apply the rule of half reaction
Then apply from reaction to base by balancing it out
Add the necessary hydrogens and electrons to each side
Multiply the top and bottom by a necessary number to equal the same amount of electrons
Rewrite the whole thing and boom.

Reply January 15, 2014 - edited
yiffyfurry

@Neuro: welp i could show on paper but im not sure how to show steps on a pc

Reply January 15, 2014 - edited
CathySenpai

[quote=Neuro]that doesn't help, i need to see the steps[/quote]

if youre requesting so much, do it yourself

Reply January 15, 2014 - edited
Neuro

[quote=yiffyfurry][url=http://www.webqc.org/balance.php]http://www.webqc.org/balance.php[/url][/quote]

that doesn't help, i need to see the steps

Reply January 15, 2014 - edited
yiffyfurry

[url=http://www.webqc.org/balance.php]http://www.webqc.org/balance.php[/url]

Reply January 15, 2014 - edited