Question

Question 2: Law of Conservation of Mass (3 points)
The clouds of Jupiter are composed mostly of ammonia, NH3, formed by a synthesis reaction between hydrogen, H2, and nitrogen, N2. Assuming all of the substances are gaseous, express the law of conservation of mass quantitatively for this reaction by completing the particle model drawing.

Answer 1

@Technodynamic here is the first one

Answer 2

Alright, step 1
They want you to write out the balanced equation first.

Answer 3

Ok so what would the balanced equation be?

Answer 4

They say NH3 is formed, so when something forms what has happened? You now have a what?
Synthesis reaction between H2 "and" N2", the word and means + right?

Answer 5

Yes ok. So what is the balanced equation?

Answer 6

They want you write the balanced equation. Do you know how to write a balanced equation?

Answer 7

No I don't know how. And I'm in a hurry because this thing is timed lol that's why I really need your help

Answer 8

First, The reactant side must equal the product side
Also for this problem i think they want you to draw the ball and stick for this.

Answer 9

Can you show me how?

Answer 10

@Technodynamic

Answer 11

H2 + N2 => NH3 This isn't balanced.

Each side must have the equal amounts of numbers.

How many H's are on the left side?
How many H's are on the right side?

Answer 12

2 H's on the left and 3 H's on the right

Answer 13

Excellent!
So to make them even, how many numbers will we need to make them even.

Let's say they both need to equal 6.

How can we can 6 H's? on both sides.

Answer 14

Multiply by 3 on the left side right?

Answer 15

That's correct!
Next, do the same for the other H.

Answer 16

So now there are 9 H's on the right side?

Answer 17

No, it has to equal six.
You have 3 x ? = 6

Answer 18

oh 3 x 2

Answer 19

Yeah you got it!

Answer 20

so what would the final balanced equation be?

Answer 21

Now, you see that both H's are equal, so you balanced the H's.
Next, look at the N's to see if they balance.

Answer 22

2 N's on the left and 3 on the right?

Answer 23

Correct, there are 2 on the left.
On the right, no...but you are close. Write out what you have, so I can check.

Answer 24

oh wait there is only one N on the right?

Answer 25

You're still close.
You have 2 on the left, so you must have the same on the right side too so it will balance.

Answer 26

so would i multiply the N on the right by 2?

Answer 27

Yes! That is correct

Answer 28

Ok so what is the final balanced equation? I want to make sure I get it right

Answer 29

Show me what you wrote so far.

Answer 30

I have H6+N2 ---> N2H6

Answer 31

Oh ok thanks. Now what do I do for the model?

Answer 32

3H2 + N2 => 2NH3

Answer 33

Do you understand why it is balanced in the way that it is?

Answer 34

Yes I do. So now how would I do the particle model drawing?

Answer 35

When gave you the original information for the equation, that doesn't change.
You just simply multiply to equal them out.
I wanted to point that out to you because I know that it will be on the test.

Answer 36

Ok thanks! So can you show me how to do the next part of the question?

Answer 37

For the drawing, now that you have the balanced information.
You must now draw it out for ball-and-stick.
Which is easy b/c you have the answer already. Just draw it

Answer 38

Can you show me what it should look like?

Answer 39

Take your molecules and draw them. Like with how many you have. Now You should be all set!

Answer 40

Ok but I'm not really sure what it would look like..can you just show me?

Answer 41

First let me ask you, do you know what a molecule looks like?

Answer 42

I guess so...yes.

Answer 43

Ok great! I'll get you started.

Answer 44

Correct for the N2 just add the stick inbetween.

Answer 45

Do i add the stick for the H3

Answer 46

For the 2NH3
Draw a 1 circle with N attached to 3 circles of H
You need two groups of these.

Answer 47

Can you show me

Answer 48

So basically your pic is correct. You just forgot to add the stick in-between the circles.

For the last H3, Put an N to it

Answer 49

Wait are you sure?

Answer 50

I'm so confused can you show me

Answer 51

Notice my pic has 3 pairs of H's. They have a stick in-between.

Answer 52

Put a stick in-between your N2

Answer 53

Is your pic the completed thing for the question? Is that the answer or is there more? Can you show me the complete model? I'm not good at drawing on here

Answer 54

There's more, but I'm teaching you how to do it.
The reason i'm teaching you is because you will definitely see this again lol. Trust me.

Answer 55

The pic is not completed. I did the first part to show you how, and so that you can manage the rest.

Answer 56

Just follow the first pic i sent you, and do the same for N2 and 2NH3.

Answer 57

You have N2 correct, just add the stick in there.

Answer 58

Haha ok so is this the full model