Question

Write the molecular equations for the following:
a. Sodium dichromate is mixed with hydroiodic acid
b. Potassium permanganate is placed in a solution of oxalic acid

Answer 1

learn your common ionic formulas, and your 5 common reaction types. These ones are both double displacement reactions

Answer 2

I don't know how to do them... can you help me?

Answer 3

The thing is I have to write the redox reactions first in order to get the
molecular formula :)

Answer 4

no you don't, you need the formulas of the reactants properly first

Answer 5

The way I have to do it is that way^ finding redox rns first that's what I have to do for my test

Answer 6

That's what the worksheet says so I got the redox rns I just can't get the molecular eqns for them

Answer 7

then do it my way. write the formulas of the reactants

Answer 8

Ok I did

Answer 9

so what are the formulas for the first one?

Answer 10

But I don't know how to do the products

Answer 11

a. Na2Cr2O7 + HI
b. KMnO4 + H2Cr2O4

Answer 12

That's right right?

Answer 13

Hello?

Answer 14

@JFraser

Answer 15

oxalic acid isn't \(H_2CrO_4\), that's chromic acid. Oxalic acid is \(H_2C_2O_4\)

Answer 16

that's probably why you can't find the redox reaction for it, your formula isn't right