The compound that ontains the most deactivated aromatic ring is the one called Nitrogen dioxide also knwon as NO2. Let me explain a little bit more about the aromatic rings. These rings are simple aromatics, or arenes, that consist of a conjugated planar ring system. Nitrogen generally is a simple aromatic ring that can be heterocyclic because containsnon-carbon ring atoms. The rings of the nitrogen can be separated into basic aromatic rings and that is why this ompound is also refered as a deactivated aromatic ring.
Answer:
Explanation:
Formula of percent composition:
% X = ( mass of element in compound / total mass of compound ) × 100
11) Al₂O₃
Al = 27 g/mol
O = 16 g/mol
%Al = (54 / 101.96) × 100
%Al = 52.9%
%O = (48 / 101.96) × 100
%O = 47.1%
12) C₅H₅O₅
C = 12 g/mol
H = 1 g/mol
O = 16 g/mol
C% = (60 / 145 ) × 100
C% =41.4%
H% = (5 / 145 ) × 100
H% =3.4%
O% = (80 / 145 ) × 100
O% = 55.2%
13) BaBr₂
Ba = 137.3 g/mol
Br =79.9 g/mol
Ba% = (137.3 / 297.14) × 100
Ba% = 46.2%
Br% = (159.8/ 297.14) × 100
Br% = 53.8%
14) Fe₃(PO₃)₂
Fe = 55.8 g/mol
P = 31 g/mol
O = 16 g/mol
Fe = (167.4/325.48) × 100
Fe = 51.43%
P = (62/325.48) × 100
P = 19.05%
O = (96 /325.48) × 100
O = 29.49%
The answer is physical as neither component changes chemically.
Answer:
This question is somehow not clear, because a typical human eye can notice objects which have wavelengths from about 380 to 740 nanometers. This is called visible spectrum (the portion of the electromagnetic spectrum that is visible to the human eye). Electromagnetic radiation in this range of wavelengths is called visible light or simply light.
Someone even can see extra colors - they able to see beyond the visible spectrum. The reason that the human eye can see the spectrum is because those specific wavelengths stimulate the retina in the human eye. The human retina can only detect incident light that falls in waves from about 380 to 740 nanometers long, so we can’t see microwave or ultraviolet wavelengths. This also applies to infrared lights which has wavelengths longer than visible and shorter than microwaves, thus being invisible to the human eye.
In conclusion, the human eye can not notice that objects with wavelength not in the range of 380 to 740 nanometers.
Explanation: