The o-xylene, m-xylene, and p-Xylene are constitutional isomers. The correct option is D.
<h3>What are isomers?</h3>
Isomers are the elements or polyatomic elements that have similar molecular formula.
All options are attached here:
A.optical isomers
B.structural isomers
C.geometric isomers
D.constitutional isomers
Thus, the correct option is D.constitutional isomers.
Learn more about isomers
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Ammonium Oxalate (NH4) 2c204 is the formula number and has a mass of 124.0959
Group two is a metal, and metals form either metallic or ionic bonds. In ionic bonds, the metal and nonmetal transfer electrons, rather than sharing them as covalent bonds do. Also, it is do*** not does because the word "elements" is not singular.
Answer:
66.2 % of O
Explanation:
Our compound is the lithium nitrite.
LiNO₂
This salt is ionic and can be dissociated: LiNO₂ → Li⁺ + NO₂⁻
We determine the molar mass:
molar mass of Li + 3 . molar mass of N + 6 . molar mass of O
6.94 g/mol + 3. 14 g/mol + 6 . 16 g/mol = 144.94 g/mol
The mass of oxygen contained in 1 mol of lithium nitrite is:
6 . 16 g/mol = 96 g
So the percentage of oxygen present is:
(96 g / 144.94 g) . 100 = 66.2 %
