Question

Write a balanced chemical equation
Lead IV oxide decomposes to yield lead II oxide and a colorless gas?

Answer 1

Why is it not PbO2---> Pb+O2?

Answer 2

@abb0t can you help me?

Answer 3

Lead(II) oxide is PbO.

Answer 4

So PbO2----> PbO+O2?

Answer 5

Of course that is not balanced.

Answer 6

they said Lead (IV) oxide, not Lead (II), joanna.

Answer 7

You got it. :)

Answer 8

How would you balance it?

Answer 9

I don't understand your comment, @abb0t.

Answer 10

Sorry, site is slow for me

Answer 11

@JoannaBlackwelder you mean balance PbO2--->PbO+O2?
Can u help me?

Answer 12

Sure. Since the lead is balanced, oxygen is where to start. The only way to have an even number of O on the product side is to have 2PbO.

Answer 13

To get lead balanced again, we will need 2PbO2.

Answer 14

Count atoms to confirm. 2 leads on each side and 4 oxygens. Done!

Answer 15

So 2PbO2--->2PbO+O2?

Answer 16

Thanks!

Answer 17

Yes. No worries. :)

Answer 18

Can you check this last one?AgNO3 (aq) with BaO

I have heard the BaO makes this impossible, but I still have to have an answer.


I know it is not 2Ag+ (aq) +o2- (aq) yields Ag2O (s) because I tried it.

Answer 19

Net ionic equation

Answer 20

Here is what it says to do

Answer 21

Thanks Joanna.

Answer 22

Is the result AgO+BaNO3? and AgO the solid?
I have heard something else happens, but the website wants it this way.

Answer 23

http://chemed.chem.purdue.edu/genchem/topicreview/bp/ch18/soluble.php

Answer 24

There is a solubility table at the bottom of this website.

Answer 25

After checking it, I feel like my prediction is correct.

Answer 26

The insoluble product is silver oxide, but for charges to balance the compound must be Ag2O.

Answer 27

ohhh

Answer 28

So would it be Ag+ +O2- -----> Ag2O?

Answer 29

for the final answer?

Answer 30

Right, except that it is not balanced.

Answer 31

Thanks, I can balance it later. I need to go.

Answer 32

Well, can you help me balance it?

Answer 33

Ok. You're welcome.

Answer 34

Sorry

Answer 35

The oxygens are already balanced, so look at the Ag first.

Answer 36

I mean 4Ag+O2-->2Ag2O

Answer 37

Close. There is only one O in the reactants (the 2 is from the charge)

Answer 38

So, you only need one more Ag in the reactants. 2Ag+(aq) + O2-(aq) -> Ag2O(s)

Answer 39

Thank you so much. You helped me get about 6 extra points today.

Answer 40

No worries. Glad I could help. :)