Chemistry Forum

PhCH2Cl + NaCN --> PhCH2CN
Mg + MeBr --> MeMgBr
PhCH2CN + MeMgBr --> PhCH2C(O)Me
PhCH2C(O)Me + DIBAH --> PhCH2CH(OH)Me

No H3(OH)2is incorrect. Water is the product Ca3(PO4)2 is correct
Ca(OH)2 is the product in the second reaction

Solubility of Fe(III) and Fe(II) compounds in the clay is essentially the same. For simplicity you can consider it’s Fe(OH)3 and Fe(OH)2 after the reduction. I wouldn’t try to reduce. Instead try EDTA and then water wash or citric acid. In the case of EDTA addition of acid will also help. You ca...

Read about Hydroxylation reaction in the middle of this page:
http://web.pdx.edu/~wamserc/CH331F96/notes/Ch4notes.htm

You are correct about Bi(NO3)3, not Bi(NO3)2

Your reaction is also balanced correctly. NaNO3 is soluble, so it will be in Na+ and NO3- forms in the solution, so the total charge will be zero

Balance two separate and independent reactions first and then combine them in one in any proportion

I4O9(s) = I2 +O2

I2O6(s)= I2 + O2

Are you serous or just kidding? How you could create carbon to make alcohol without carbon compounds in the reagents? Is this a nuclear reaction or plane alchemy?

Write to separate reactions and balance them
C + O2 = CO2 and
C + O2 = CO

Yes, this is correct, except balanced it will look like this:

4 KO2 + 2 CO2 = 2 K2CO3 + 3 O2

This reaction can serve to absorb CO2 and replenish oxygen in submarines or space stations.

Here you can easily calculate pOH by taking log of that number. After that follow the simple rule pH = 14- pOH
http://en.wikipedia.org/wiki/PH

Separate the reaction into two independent processes and then combine the resultant reactions in any ratio. Make sure that your product is MnO2, not MnO. V2O2 is also unlikely, V2O3 most likely

FeO + KMnO4 → Fe2O3 + K2O + MnO2
V2O3 + KMnO4 → V2O5 + K2O + MnO2

No, KMnO4 does not react with oxygen. It generates oxygen when heated turning into K2MnO4 http://en.wikipedia.org/wiki/Kmno4
2KMnO4 →(t) K2MnO4 + MnO2+ O2↑

That reaction can be easily balance by adding 4 to every K. At the same time it's incorrect anyway because Pb(OH)4 doesn't exist. It dehydrates into PbO2 instantly, so the correct reaction is
Pb(NO3)4 + KOH --> PbO2 + KNO3 + H2O

Go ahead and balance it.

Calcium chloride and silicic acid http://en.wikipedia.org/wiki/Silicic_acid

NaNO3, not Na2NO3