It takes roughly 4.18 Joules of energy to increase the temperature of 1g of H20 by 1 degree C.
<span>a) Iodide is a strong nucleophile but a weak base, so SN2 is the preferred reaction.
Only the bromine on C1 is eligible to undergo SN2, so that one will be replaced by iodide.
b) Silver ion tends to suck off a halide ion and leave a carbocation, which means E1 and SN1.
If there's only one equiv, then the tertiary bromide on C4 is the one that will go. The resulting carbocation can give:
E1 products 5-Br-2-Me-2-pentene (major, trisub) and 5-Br-2-Me-1-pentene (disub, minor).
SN1 product 5-bromo-2-ethoxy-2-methylpentane</span>
Answer: Massive
Explanation: There are many galaxies out in the universe and it's possible they go on indefinitely. Out of all of these, our solar system is very very tiny. As an analogy, our universe would be like an atom which are the the smallest units of matter. There are many other galaxies that we just haven't been able to discover but they are there.
Based on octet rule, elements would fill up their
outermost shell with 8 electrons to be stable. In this case, Carbon has 4
valence on its outer shell, Hydrogen has only 1 valence, while Bromine has 7. Therefore
the total valence electrons are:
total valence = 4*4 + 1*6 + 7*2 = 16 + 6 + 14
<span>total valence = 36</span>