December 28, 2024, 07:47:12 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: are these reactions corrects?  (Read 8112 times)

0 Members and 1 Guest are viewing this topic.

Oxydon

  • Guest
are these reactions corrects?
« on: May 04, 2006, 09:18:49 PM »
cupper sulphate +sodium hydroxide------->cupper hydroxide + sodium sulphate
CuSO4 +NaOH------>CuOH +NaSO4

sodium chloride + silver nitrate-------->sodium nitrate + silver chloride
NaCl + AgNO3-------> NaNO3 +AgCl

Potassium Iodide + Lead Nitrate------->potassium nitrate + Lead Iodide
2KI + Pb(NO3)2 --------> 2KNO3 + 2PbI

Dilute sulphuric acid +barium Chloride-------->Hydrochloric acid +barium sulphate
H2SO4 + BaCl ----------> 2HCl + BaSO4

are these corect?
Logged

Offline mike

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 1245
  • Mole Snacks: +121/-35
  • Gender: Male
Re: are these reactions corrects?
« Reply #1 on: May 04, 2006, 09:30:50 PM »
They aren't balanced.

You should use subscripts where appropriate.

First equation is wrong anyway because copper is Cu2+ and sodium is Na+.

Copper is spelt "copper" not cupper, probably a typo though ;)

Do you have to state whether they are solids or aqueous?
Logged
There is no science without fancy, and no art without facts.

Oxydon

  • Guest
Re: are these reactions corrects?
« Reply #2 on: May 04, 2006, 09:39:14 PM »
thanks for the help mike....but i have figured it all out....thanks for helping though.
Logged

Offline mike

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 1245
  • Mole Snacks: +121/-35
  • Gender: Male
Re: are these reactions corrects?
« Reply #3 on: May 04, 2006, 09:43:51 PM »
And the answers are...
Logged
There is no science without fancy, and no art without facts.

Oxydon

  • Guest
Re: are these reactions corrects?
« Reply #4 on: May 04, 2006, 10:12:27 PM »
Cu(SO4) +2NaOH(aq) -------->Cu(OH)2 +Na2SO4
« Last Edit: May 04, 2006, 10:24:32 PM by mike »
Logged

Oxydon

  • Guest
Re: are these reactions corrects?
« Reply #5 on: May 04, 2006, 10:22:50 PM »
Cu(SO4)2(s) + NaOH(aq)------>Cu(OH)2(s) + Na2SO4(aq)

NaCl(aq) + AgNO3(aq) -------->NaNO3(aq) + AgCl(aq)


2KI(s) +Pb(NO3)2(aq)--------->2KNO3(aq) + 2PbI(s)

H2SO4(aq) + BaCl2(aq) ------------->2HCl(aq) + BaSO4(s)



 
Logged

Offline mike

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 1245
  • Mole Snacks: +121/-35
  • Gender: Male
Re: are these reactions corrects?
« Reply #6 on: May 04, 2006, 10:26:53 PM »
CuSO4 so first one needs re-doing



Logged
There is no science without fancy, and no art without facts.

Oxydon

  • Guest
Re: are these reactions corrects?
« Reply #7 on: May 04, 2006, 10:41:28 PM »
CuSO4(s) +NaOH(aq)------------->Cu(OH)2(s) + Na2SO4(aq)
Logged

Offline mike

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 1245
  • Mole Snacks: +121/-35
  • Gender: Male
Re: are these reactions corrects?
« Reply #8 on: May 04, 2006, 11:58:51 PM »
2NaOH :)
Logged
There is no science without fancy, and no art without facts.

Offline AWK

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7976
  • Mole Snacks: +555/-93
  • Gender: Male
Re: are these reactions corrects?
« Reply #9 on: May 05, 2006, 02:40:18 AM »
AgCl is solid, lead iodide formula  is PbI2
Logged
AWK

Offline mrdeadman

  • Full Member
  • ****
  • Posts: 262
  • Mole Snacks: +23/-39
  • I got a 5. Hooray!
Re: are these reactions corrects?
« Reply #10 on: May 05, 2006, 02:55:52 PM »
Quote from: AWK on May 05, 2006, 02:40:18 AM
AgCl is solid, lead iodide formula  is PbI2
+1
Logged
AP Chemistry Squad Member [001]
Pages: [1]   Go Up
« previous next »
Sponsored Links