Answer:
Explanation:
The amine functional group is obtained by subsititution of one or more hydrogen atoms in the ammonia compound.
Ammonia is NH₃.
Then,
- by substituting one hydrogen you obtain R - NH₂.
- by substituting two hydrogens you obtain R' - NH - R''
- by subsituting the three hydrogens you obtain:
R'''
|
R' - N - R''
In this case, the three subsitutuents are silyl groups. The silyl group is derived form silane and is SiH₃. So, the tcompound <em>trisilylamine</em> is:
SiH₃
|
SiH₃ - N - SiH₃
Thus, you can count 3 hydrogen atoms for every silylgroup for a total of <u><em>9 hydrogen atoms in each molecule of trisilylamine.</em></u>
First we have to understand what a half life is. A half life is a measure of time when the amount of a certain object is 50% of the original amount. Hence the answer for this is letter A. The initial amount is 100. fifty percent of 100 is 50 and that happens after 15 hours. Hence, 15 hours is the half life period.
Answer:
In 7.80 g of styrene, we have 3.60×10²³ atoms of H
Explanation:
Empirical formula of styrene is CH
Molecular formula of styrene is C₈H₈
So, 1 mol of styrene has 8 moles of C and 8 moles of H and 1 mol weighs 104.14 grams. Let's make a rule of three:
104.14 g (1 mol of C₈H₈) have 8 moles of H
Then 7.80 g would have ( 7.80 .8) / 104.14 = 0.599 moles
As we know, 1 mol of anything has NA particles (Avogadro's Number, 6.02×10²³), so 0.599 moles will have (mol . NA) particles
0.599 mol . 6.02×10²³ atoms / 1 mol = 3.60×10²³ atoms
The fuel rods contain the pellets of uranium dioxide which releases radioactive energy.
