Answer:
the correct option is D
Explanation:
By keeping the material in an amorphous state, and not promoting its crystallization ... Its internal structure generates that no beam of light is refracted when passing through it, that is why it does not refract any color, therefore it does not manifest any to the simple sight of the human eye.
In addition, all amorphous materials do not have a crystal lattice structure like crystalline crystals, a key example of this type of material is glasses or crystal cups.
The molecules of the amorphous solids are randomly distributed, which means that the macroscopic physical properties of the solid are isotropic, identical in all directions.
Amorphous oxides, thanks to their transparency, solidity and easy to shape into large sheets, are widely used as window glass. Certain organic polymers, by virtue of their strength, light weight and easy processing, are used as structural materials (plastics). There are amorphous semiconductors that are used in computer memories and solar cells thanks to their photovoltaic optical properties and the ease of creating large-area thin films. Amorphous metals are used in transformer cores thanks to their ferromagnetism, low losses and the possibility of forming long tapes. Amorphous chalcogenide is used in xerography by virtue of its photoconductivity and the possibility of forming large area films.
<span> so now we use the number of moles of NO 5.27 moles. use again the PV=nRT
R=62.36367(L mmHg K−1 mol−1)
T=35C + 273 = 308K
P=632 mm Hg
V=97.3 L
n=632*97.3/62.3636367*308=3.20145770868
Look at the mole ratio of NO to NO2 its 2:2 they share the same number of moles.
Atomic weight of each element in NO2
N:14 O:16
Molar Mass:(16*2)+(14*1)=46 g
Actual number of moles=3.20
Theortical number of moles=5.20
Percentage Yield=(Actual Yield/Theortical Yield)*100</span>
The geosphere has four subsystem called the lithosphere, hydrosphere, cryosphere, and atmosphere.
The water in the bowl on which light is focused evaporate quickly because light gives out heat which speeds up the process of evaporation :)
Answer:
When Zinc reacts with hydrochloric acid the following reaction takes place:
Zn+2HCl→ZnCl
2
+H
2(g)
↑
Here 1 molecules of hydrochloric acid taking part in the reaction,the number of molecules of hydrogen produced in the reaction.
4molesofHCl×
2molesofHCl
1moleofH
2
=2molesofH
2