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3 years ago

How does light travel through a solid, liquid, gas, and a vacuum?

Chemistry

2 answers:

Mariana [72]3 years ago

4 0

Answer:

Answer:

i work hard for my grades i pay attention in school

Explanation:

thats why i got straight A's unlike uAnswer:

i work hard for my grades i pay attention in school

Explanation:

thats why i got straight A's unlike uAnswer:

i work hard for my grades i pay attention in school

Explanation:

thats why i got straight A's unlike uAnswer:

i work hard for my grades i pay attention in school

Explanation:

thats why i got straight A's unlike uAnswer:

i work hard for my grades i pay attention in school

Explanation:

thats why i got straight A's unlike uAnswer:

i work hard for my grades i pay attention in school

Explanation:

thats why i got straight A's unlike uAnswer:

i work hard for my grades i pay attention in school

Explanation:

thats why i got straight A's unlike uv

Explanation:

REY [17]3 years ago

3 0

Light travels in a straight line as a wave. It does not require any medium or material to travel like sound waves which means it can travel in vacuum.The speed of the light from the special theory of relativity is a constant value of 38x10^8m/second

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Explanation:

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4 years ago

A solution is made by dissolving 58.125 g of sample of an unknown, nonelectrolyte compound in water. The mass of the solution is

e-lub [12.9K]

Answer:

molecular weight (Mb) = 0.42 g/mol

Explanation:

mass sample (solute) (wb) = 58.125 g

mass sln = 750.0 g = mass solute + mass solvent

∴ solute (b) unknown nonelectrolyte compound

∴ solvent (a): water

⇒ mb = mol solute/Kg solvent (nb/wa)

boiling point:

ΔT = K*mb = 100.220°C ≅ 373.22 K

∴ K water = 1.86 K.Kg/mol

⇒ Mb = ? (molecular weight) (wb/nb)

⇒ mb = ΔT / K

⇒ mb = (373.22 K) / (1.86 K.Kg/mol)

⇒ mb = 200.656 mol/Kg

∴ mass solvent = 750.0 g - 58.125 g = 691.875 g = 0.692 Kg

moles solute:

⇒ nb = (200.656 mol/Kg)*(0.692 Kg) = 138.83 mol solute

molecular weight:

⇒ Mb = (58.125 g)/(138.83 mol) = 0.42 g/mol

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3 years ago