Search found 398 matches

by GrahamKemp
Thu Sep 20, 2018 7:00 pm
Forum: Chemistry forum
Topic: pls help me with this equation!!
Replies: 2
Views: 20626

Cyclohexanol -> Adipic Acid?

Ultimately

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3C6H11OH + 8HNO3 = 3 (COOH)(CH2)4COOH + 8NO + 7H2O
, but the process requires several managed substages to acheive a useful yeild.
by GrahamKemp
Wed Sep 19, 2018 9:46 pm
Forum: Chemistry forum
Topic: Please help I do not know how this reaction works
Replies: 2
Views: 20489

Nope; no production of hydrogen gas.

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(HPO4){2-}+ H{+} = (H2PO4){-}
and

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H3PO4= H{+} + (H2PO4){-}

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CaHPO4 + H3PO4 = Ca(H2PO4)2
by GrahamKemp
Wed Jul 19, 2017 7:32 pm
Forum: Chemistry forum
Topic: Products of this equation please
Replies: 2
Views: 3299

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CH2
is mean to be...?
by GrahamKemp
Thu May 04, 2017 4:19 pm
Forum: Chemistry forum
Topic: Help, balance 😭😭
Replies: 1
Views: 7306

That's not going to happen. The oxidation of ethanol produces ethanal, not ethene.

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3 CH3H2OH + K2CrO7 + 4 H2SO4 = 3 CH3CHO + K2SO4 + Cr2(SO4)3+ 7 H2O
by GrahamKemp
Wed Apr 19, 2017 7:09 pm
Forum: Chemistry forum
Topic: Can someone explain me how to balance this reaction?
Replies: 3
Views: 6890

Re: Can someone explain me how to balance this reaction?

(Ru++) +(NH4+) + (Br2) = (Br-) +Ru(NO2)2 Todo, balance: Ru{2+} + NH4{+} + Br2 = Br{-} + Ru(NO2)2 Remove the spectator ion Ru{2+} and divide into Red/Ox half cells. 2 NH4{+} = 2 NO2{-&a...
by GrahamKemp
Tue Apr 18, 2017 7:28 am
Forum: Chemistry forum
Topic: Why NiS + NaCl is an impossible reaction
Replies: 2
Views: 5671

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NiS + 2 NaCl = ...
does not proceed in aqueous solution because the

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NiS
is insoluble.

Indeed, these are the products of the precipitation reaction:

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 NiCl2(aq) + Na2S(aq) = NiS(s) + 2 NaCl(aq) 
by GrahamKemp
Tue Apr 18, 2017 7:12 am
Forum: Chemistry forum
Topic: H3BO3+Ca9(OH)2-->CaBO3H2O
Replies: 1
Views: 6628

Re: H3BO3+Ca9(OH)2-->CaBO3H2O

Boric Acid + Calcium hydroxide = Calcium borate + Water

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2 H3BO3 (aq) + 3 Ca(OH)2 (aq) = Ca3(BO3)2 (s) + 6 H2O (l)
by GrahamKemp
Wed Aug 24, 2016 6:40 pm
Forum: Chemistry forum
Topic: Help me balance this equation
Replies: 2
Views: 6085

Re: Help me balance this equation

C10H10Fe+(CH3CO)2O = C12H12FeO+C14H14FeO2 is FeH2(C5H4)2 + (CH3CO)2O = FeH(C5H4)2(CH3CO) + Fe(C5H4)2(CH3CO)2 Which suggests water is a biproduct. Use aliasing : FeH2X2 + Y2O = FeHX2Y + Fe...
by GrahamKemp
Wed Aug 24, 2016 4:55 pm
Forum: Chemistry forum
Topic: I4O9 = I2O6 + I2 + O2
Replies: 3
Views: 9158

Re: I4O9 = I2O6 + I2 + O2

I4O9 = I2O6 + I2 + O2 Oh, this is trickery. I2O6 does not exist. I2O5 does. It is O(IO2)2 On the other side of the equation, I4O9 is I(OIO2)3 with one Iodine in oxidation state +3 and the others are in +5 (and covalently bonded to the oxygen). So one of these Iodine ...
by GrahamKemp
Wed Aug 24, 2016 4:26 pm
Forum: Chemistry forum
Topic: Redox (base): MnO2 (s) + O2 -> MnO4^(-2) + H
Replies: 2
Views: 5281

MnO2 (s) + O2 = MnO4(-2) + 2electrons. And this is balanced dunno about that H cause it is not possible to create a free atom. :roll: Creating electrons should also be avoided. Charges must balance. Balance with ambient water. 2 MnO2 + 2 O2 + H2O = 2 MnO4{2-} + 4 H{+&...
by GrahamKemp
Wed Aug 24, 2016 4:15 pm
Forum: Chemistry forum
Topic: Is this the right balanced equation?
Replies: 1
Views: 5475

Re: Is this the right balanced equation?

Mostly yes. Water of hydration is not involved in the reaction.

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(NH4)2Fe(SO4)2 + 4NaOH = 2 Na2SO4 + 2 NH3 + Fe(OH)2 + 2 H2O
by GrahamKemp
Tue Aug 23, 2016 9:42 pm
Forum: Chemistry forum
Topic: please help with redox balancing
Replies: 1
Views: 4811

Re: please help with redox balancing

Split into half reactions, removing spectator ions and water and its ions. Balance Oxygen using water. Balance Hydrogen using protons. Then balance the charges using electrons. Merge so that electrons cancel. Note: To make alkaline, add sufficient OH{-} on both sides to neutralise ...
by GrahamKemp
Tue Aug 23, 2016 9:27 pm
Forum: Chemistry forum
Topic: Chemical Equation HELP?
Replies: 1
Views: 4405

Obviously

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[Co(NH3)4Cl2]{+} + Cl{-} + NH3 + 5 H2O = [Co(NH3).5H2O]{3+} + 3 Cl{-}
by GrahamKemp
Tue Aug 23, 2016 9:21 pm
Forum: Chemistry forum
Topic: Ayuda con esta ecuación
Replies: 1
Views: 4913

Re: Ayuda con esta ecuación

PCl3 + ClO3{-} = Cl2 + P2O5 + HCl Half : 2 P{3+} = P2O5 || 2 ClO3{-} = Cl2 Bal O: 2 P{3+} + 5 H2O = P2O5 || 2 ClO3{-} = Cl2 + 6 H2O Bal H: 2 P{3+} + 5 H2O = P2O5 + 10 H{+} |...
by GrahamKemp
Mon Aug 22, 2016 5:50 pm
Forum: Chemistry forum
Topic: help me please :)
Replies: 1
Views: 5063

Re: help me please :)

AgNO3 + NH4OH + CH3CHO = Ag + NH4NO3 + CH3COONH4 + H2O Notice that NH4{+}, NO3{-} are spectators, and the -C=OCH3 functional group remains intact. We can remove the spectators and alias the functional group, then balance the remainder. Do away with the distractio...