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3 years ago

Which element has molecules containing 8 atoms?

Chemistry

1 answer:

motikmotik3 years ago

6 0

I know that sulfur/sulphur does. It is commonly known as the sulfur s8 structure.

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An x-ray has a wavelength

goldfiish [28.3K]

Answer:

Explanation:

For electromagnetic waves frequency X wavelength = speed of light

f * 2.2 x 10^-11 = 3 x 10^8 m/s

f = 3 x 10^8 / 2.2 x 10^-11

= 1.36 x 10 ^19

= 1.4 x 10^19 with two significant digits

5 0

1 year ago

Which of the following is a cause of a dna mutation

lisov135 [29]

Answer:

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3 years ago

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timurjin [86]

Answer:

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3 years ago

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inysia [295]

Answer:

Explanation:

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6 0

3 years ago

Calcula el pH de las siguientes sustancias formadas durante una erupción volcánica:

Virty [35]

<em>Calculate the pH of the following substances formed during a volcanic eruption: </em>

<em>• Sulfurous acid if [H +] = 0.10 </em>

<em>• Nitric acid if [H +] = 0.11</em>

<em />

<h3>Further explanation </h3>

pH is the degree of acidity of a solution that depends on the concentration of H⁺ ions. The greater the value the more acidic the solution and the smaller the pH.

pH = - log [H⁺]

pH acid rain

$\tt pH=-log[1.9\times 10^{-5}]\\\\pH=5-log1.9\\\\pH=4.72$

pH Sulfurous acid

$\tt pH=-log[10^{-1}]\\\\pH=1$

pH Nitric acid

$\tt pH=-log[11\times 10^{-2}]\\\\pH=2-log~11=0.959$

8 0

2 years ago