3 years ago

Which og the following best describe your lungs?

Chemistry

1 answer:

jarptica [38.1K]3 years ago

6 0

ambot unsa ang answr kay kamo ra naka sabot

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Double-click on a sheet tab to _______ the sheet.

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Copy it I think hp[e that is right lol

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4 years ago

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Electronic configuration [Ne]3s2 3p6

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The answer is Argon! From Ne you go 2 3s level elements and then 6 3p level elements

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3 years ago

A laser emits a green light with wavelength of 515 nm. Calculate the frequency of this light.

pentagon [3]

Answer:

$Frequency=5.83\times 10^{14}\ Hz$

Explanation:

The relation between frequency and wavelength is shown below as:

$c=frequency\times Wavelength$

c is the speed of light having value $3\times 10^8\ m/s$

Given, Wavelength = 515 nm

Also, 1 m = $10^{-9}$ nm

So,

Wavelength = $515\times 10^{-9}$ m

Thus, Frequency is:

$Frequency=\frac{c}{Wavelength}$

$Frequency=\frac{3\times 10^8}{515\times 10^{-9}}\ Hz$

$Frequency=5.83\times 10^{14}\ Hz$

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3 years ago

A home is heated by a system that uses sunlight to warm water in pipes. Which statement best describes this system?

juin [17]

Answer:

In which part of a nuclear power plant does fission take place? A home is heated by a system that uses sunlight to warm water in pipes. Which statement best describes this system? An active solar system because sunlight shines on the pipes naturally.

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3 years ago

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When 0.639 L of a 0.60 M solution is diluted to 2.822 L, what is the new molarity? Report your answer with 4 decimal places.

Liono4ka [1.6K]

Answer:

The new molarity is 0,1359M.

Explanation:

A dilution consists of the decrease of concentration of a substance in a solution (the higher the volume of the solvent, the lower the concentration).

We use the formula for dilutions:

C1 x V1 = C2 x V2

0,60 M x 0,639 L= C2 x 2,822 L

C2=(0,60 M x 0,639 L)/ 2, 822 L

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