Splitting of a signal in a proton NMR spectrum tells us the number of chemically non-equivalent hydrogens in the immediate vicinity of the hydrogen giving the signal. Predict the number of lines exhibited by hydrogens at the labeled positions in a first-order NMR spectrum. (Make the approximation that all coupling constants are equal.)1) Splitting of a signal in a proton NMR spectrum telThe number of lines exhibited by hydrogen(s) a is .The number of lines exhibited by hydrogen(s) b is .The number of lines exhibited by hydrogen(s) c is .2) Splitting of a signal in a proton NMR spectrum telThe number of lines exhibited by hydrogen(s) a is .The number of lines exhibited by hydrogen(s) b is .The number of lines exhibited by hydrogen(s) c is .3) Splitting of a signal in a proton NMR spectrum telThe number of lines exhibited by hydrogen(s) a is .The number of lines exhibited by hydrogen(s) b is .The number of lines exhibited by hydrogen(s) c is .4) Splitting of a signal in a proton NMR spectrum telThe number of lines exhibited by hydrogen(s) a is .The number of lines exhibited by hydrogen(s) b is .The number of lines exhibited by hydrogen(s) c is .

[Verse 1: DJ]

We've been playing in Roblox

Since we were young and we can’t stop, wow

If we tried to fight crime right now

I don't think that we could work it out

Out on the front lawn

Thinking about the world and our small town

Could I let you fight by yourself

While I'm searching for something else?

[Chorus: DJ and Sabrina]

If we go down, then we go down together

They’ll say you could beat anything

We'll fight like we are brothers

If we go down, then we go down together

We'll make it out of everything

Let's show them we are better

[Break: DJ]

Let's show them we are better

We could do this forever

[Verse 2: DJ]

We've been slaying in Roblox

Defeating all of the warlocks

You look so proud

Standing there with a mask and a bayonet

Making the bad guys run from our silhouette

They're trying to tear us

We breathe in the air of this good town

On our own chosen path we were killin' it

Training hard with the powers we were gifted with

[Chorus: DJ and Sabrina]

If we go down then we go down together

They’ll say you could beat anything

We’ll fight like we are brothers

If we go down then we go down together

We'll make it out of everything

Let’s show them we are better

[Bridge: Sabrina, DJ, Sabrina & DJ]

Let's show them we are

Show them we are

Show them we are

Show them we are

We could do this forever

We were playing in Roblox

We could do this forever

Let's show them we are better

[Chorus: DJ and Sabrina]

If we go down then we go down together

They'll say you could beat anything

We’ll fight we are brothers

If we go down then we go down together

We'll make it out of anything

Let's show them we are better

[Refrain: DJ & Sabrina]

If we go down (We were slaying in Roblox)

If we go down (We were slaying in Roblox)

If we go down (We were slaying in Roblox)

If we go down

Let's show them we are better

We were slaying in Roblox

[Outro: DJ & Sabrina]

Let's show them we are better

Let's show them we are better

If we go down

Let's show them we are better

If we go down

Let's show them we are better

If we go down

Let's show them we are better

We could do this forever

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.