The Electromagnetic<span> Spectrum consists of radio </span>waves, microwaves (a type of radiowave<span>), infrared rays, visible light, ultraviolet rays, X-rays, and gamma rays. </span>Waves with the longest wavelengths<span> have the lowest frequencies. </span>Waves with the shortest wavelengths<span> have the highest frequencies.
-Hope this helped! :D</span>
Answer:
Multiply 3 by Avogadro's number.
Explanation:
The mole can be defined as the amount of a substance that contains Avogadro’s number of particles, 6.02 x 10²³.
For elementary particles:
Number of particles=
number of moles x 6.02 x10²³
From the question,
Number of moles = 3moles
Number of particles = 3 x 6.02 x10²³
<u>Answer:</u> The molality of 
solution is 4.013 m
<u>Explanation:</u>
Molality is defined as the amount of solute expressed in the number of moles present per kilogram of solvent. The units of molarity are mol/kg.
The formula used to calculate molarity:
.....(1)
Given values:
Given mass of = 20.0 g
Molar mass of = 62.3 g/mol
Mass of solvent = 80.0 g
Putting values in equation 1, we get:
Hence, the molality of solution is 4.013 m
Answer:
I am pretty sure it's Lithium because it's a light and soft metal. Bromine is a liquid so that cant be it and Niobium is a light gray crystalline (crystal/ sharp not dull).
Hope this helps :)
Explanation:
