Answer:
83.7% oxygen, 16.3% hydrogen
Explanation:
Mass of compound = 16.75 g
Mass of Oxygen = 14.02 g
Mass of Hydrogen = 2.73 g
Percentage composition = Mass of element / Mass of compound 100%
Percentage composition of Oxygen = 14.02 g / 16.75 g * 100%
Percentage composition of Oxygen = 0.837 * 100 = 83.7%
Percentage composition of Hydrogen = 2.73 g / 16.75 g * 100%
Percentage composition of Hydrogen = 0.163 * 100 = 16.3%
The correct option is;
83.7% oxygen, 16.3% hydrogen
D. They're the main site of photosynthesis in autotrophs.
<span>If the gasses participates in the reaction, and they under the same temperature and pressure, ratio of their volumes is equal to ratio of the moles of these gasses in the reaction.
N2 (g) + 3H2 (g)-------> 2NH3 (g)
from reaction 3 mol 2 mol
from the problem 4.5L x L
x=4.5*⅔=9/3=3 L<span>
</span></span>
Answer:
Option D.
Explanation:
The correct answer is option D that is Trigonal planar because of the data or following information given from the question;
=> "one atom belonging to an element in group 14".
This means that one atom has a lesser electronegativity. And this atom will be the central atom (reason: central atoms have less electronegativity).
=>" two atoms belonging to an element in group 1"
One of the characteristics of group one is it ability to form only one bond, here we will be considering the number of bonds which is one.
=>" one atom belonging to an element in group 16."
Here, we have two bonds.
Thus ,the molecules has one single bonds for each atoms and one double bonds for the last description. We have 3 atoms bonded at 120° each to the central atom.