Answer:
Which solution is the least concentrated?
O 2 moles of solute dissolved in 4 liters of solution
O 1 mole of solute dissolved in 4 liters of solution
4 moles of solute dissolved in 6 liters of solution
6 moles of solute dissolved in 4 liters of
Answer:
Methacrylaldehyde
Explanation:
The first step is the calculation of the <u>IHD</u> (index hydrogen deficiency):
This value indicates that we have <u>2 double bonds</u>. Now, if we check the IR info we can conclude that we have an <u>oxo group</u> (C=O) due to the signal in <u>1705 cm^-1 </u>. So, the options that we can have are <u>aldehyde or ketone</u>.
If we analyze the NMR info we have a signal in 194.7 <u>with only 1 hydrogen</u>. This indicates that necessary we have an <u>aldehyde due to the hydrogen</u>. Also, for the signal in 14 we will have a 
, for the signal at 134.2 we will have a 
and for the signal at 146.0 we will have a quaternary carbon (no hydrogens present).
So, we will have a , , C (without hydrogens), an aldehyde group and a double bond.
When we put all this together we will obtain the <u>Methacrylaldehyde</u> (see figure).
Without the statements, I can't specifically answer your question. But, I can present the largest piece of evidence we have for the Big Bang Theory.
Over the course of <em>many many </em>years, we have noticed something. Everything is expanding outwards.
We can observe this, and realise that since things are expanding outwards, or, away from something, everything once came from a fixed point.
Life and the universe started from one point, and every single thing in our cosmos is still expanding away from it. =)
YER MOM.... jk, <span>Gold is used to make jewelry because
of the attractiveness of its luster and because of its rarity. It also
doesn't tarnish and doesn't react with air the way a metal like iron
does. Gold is malleable, which means it can be beaten into very thin
sheets. It's also ductile, which means it can be stretched out into thin
wire as in the findings of earrings :3</span>
