Question

Ca + N2H2O -------> Ca(OH) 2 +H2
Given the balaanced chemical equation : What is the total number of moles of Ca that will react with 6 moles of water?

Answer 1

Something looks off about your equation, what happens to the N?

Answer 2

Did you mean

Ca+2H2O>>>>>Ca(OH)2+H2?

Answer 3

Oh yeah lol sorry there is no N, good catch i was suprised

Answer 4

Well, then it's pretty simple from here. The current balanced equation has 2 moles of water and 1 mole of Ca. If you want 6 moles of water, you multiply the co efficient by 3...

Ca=1x3=?

Answer 5

What how did you get 2 moles of water sorry. And 3 moles of Ca

Answer 6

Ca+2H2O>>>>>Ca(OH)2+H2

there is a two in front of H2O

Answer 7

that represents 2 moles

Answer 8

It was balanced already im guessing.

Answer 9

if they suddenly wanted 6 moles, you would multiply the whole equation by three.

Answer 10

so...you need 3 moles of Ca

Answer 11

Ok thanks. Can i ask one more and tell you the answer to see if i get it write

Answer 12

I did not pay attention in class today

Answer 13

go ahead

Answer 14

Given the balanced cehmical equations: What is the total numbero f mles of NO2 that will be produced from 5 moles of N205?
2N205(G)------> 4 NO2(G) + O2(G)

Answer 15

Is the answers 1,25 moles of NO2

Answer 16

1.25

Answer 17

Your current equation has 2 moles of N2O5, what would you multiply to get the number to 5?

Answer 18

Im lost

Answer 19

2.5 ?

Answer 20

yes. so there are also 4 moles of NO2.

4x2.5=?

Answer 21

10

Answer 22

Is that it?

Answer 23

yes

Answer 24

Should i write it as a fraction or a decimal

Answer 25

well the number "10" doesn't have to be in a fraction or decimal

Answer 26

May i ask one more this one seems a little harder

Answer 27

Thanks for telling me

Answer 28

Wait would the answer be 10 OR 2.5?

Answer 29

10 moles

Answer 30

2.5 was just the ratio factor

Answer 31

But the first problem we used same equation

Answer 32

2h20 * 3 = 6 so it would be 3 moles

Answer 33

yes that was just a coincident 3 as the scale factor, but also 3 moles of Ca.

Answer 34

Oh lol ok thanks

Answer 35

May i ask one more!

Answer 36

of course

Answer 37

Given the balanced chemical equation: How many moles of C02 will be produces from reeacting 7.4 moles of 02
CH4 (G) + 202 (G) -----> C02(G) + 2H20(I)

Answer 38

There are two moles of O2 and 1 mole of Co2.

If there are 7.4 moles of O2..

you simply do 7.4/2=

Answer 39

Lol thank you, sorry i didnt pay attention today still learning it. That sounds very easy, thanks wouldnt have done it without you

Answer 40

its alright. feel free to tag me onto more questions :)

Answer 41

Thank you!