2 years ago

Which of the following locations would most likely have the most fertile soul?

Chemistry

1 answer:

alexandr1967 [171]2 years ago

3 0

A volcano valley. Volcanic ash is a good sorce for fertilizer

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The teal line of the hydrogen emission spectrum has a wavelength of 486.0 nm. A hydrogen emission spectrum has a violet, a blue,

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Answer:

The correct answer to the following question will be "4.08 × 10⁻¹⁹ Joule".

Explanation:

Given:

Wavelength, λ = 486.0 nm

As we know,

$E=h\upsilon =\frac{hc}{\lambda}$

On putting the estimated values, we get

⇒ $=\frac{1241.5 \ ev\ nm}{486 \ nm}$

⇒ $=2.554 \ ev$

∴ 1 ev = 1.6 × 10⁻¹⁹ J

Now,

Energy, $E=2.554\times 1.6\times 10^{-19}$

⇒ $=4.08\times 10^{-19} Joule$

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2 years ago

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0.737M

Explanation:

C1V1=C2V2

2.50 x 0.442 = C x 1.5

1.105 = C x 1.5

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C = 0.737M

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A student dissolves 73 g of sodium nitrate, NaNO3, in 100 mL of water and observes a clear, colorless

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That is because the atoms form new and different bonds to give the products.

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