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Soloha48 [4]
3 years ago
15

Why is the fact that light travels at 300,000 km/s is a consequence of energy conservation?

Chemistry
1 answer:
user100 [1]3 years ago
8 0

Answer is: true.

The law of conservation of energy states that the total energy of an isolated system remains constant; energy can neither be created nor destroyed; it can only be transformed or transferred from one form to another.

Albert Einstein (1879-1955) proposed that a beam of light is a collection of discrete wave packets (photons) with energy hν, where h is Planck constant and ν is frequency.

E = h·ν.

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3 years ago
how many H+ ions are in a solution with a pH of 2 and how many H+ ions are in a solution with a pH of 6?
LiRa [457]

Answer:

i) pH = 2

pH = -log(H+)

:- (H+) = 10^(-2)

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ii) pH = 6

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Explanation:

By definition: pH = -log(H+).

Given your pH, solve for the H+ using the the following log rule:

if a = (+/-) log (b) then

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Also remember unit of concentration is molar (M)

3 0
3 years ago
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BaLLatris [955]

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first of all is that really chemistry

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3 years ago
(5.625 + 8.15) x 2.34 + 3.2
dalvyx [7]

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3 0
3 years ago
Read 2 more answers
If an atom has an atomic number of 6 and and abdomens mass of 12 how many electrons does it have
Basile [38]
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So, when atomic number is 6, proton number is also 6, and number of electrons will also be 6 in that atom.

Hope this helps! :)
5 0
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