A recording system using a pegboard to increase daily productivity with transactions; also referred to a one-write system.
If wavelengths of light
from a definite region of the spectrum are engrossed by a material, then the
materials will appear to be the complementary color. If violet light with
wavelength of 400nm is immersed, the material will look yellow. If the material
engrosses blue you will perceive the color orange.
Answer:
that's my answer
Explanation:
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Answer:
I would say location because the other actually describe the different things you would see in a region and the others seem more detailed
Answer:
- 484 KJ/mol
Explanation:
The reaction equation is;
CH4(g) + F2 (g) ------> CH3F(g) + HF(g)
The enthalpy of the reaction can be calculated from bond energies using the formula;
ΔHreaction = Bond energy of reactants - bond energy of products
or
ΔHreaction = Bonds broken - bonds formed
[4(413) + 1(155) - 3(413) + 1(485) + 1(567)]
[(1652 + 155) - (1239 + 485 + 567)]
[1807 - 2291]
= - 484 KJ/mol
