3 years ago

If there's an oil spill and there's a fire in the ocean why can't the ocean water just put out the fire?

Chemistry

1 answer:

Lesechka [4]3 years ago

6 0

Answer:

cause the oil is on fire nit the water oil is less dense than water so it floats on top of it

Explanation:

I hope I helped you

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How many protons does the element Na have

kramer

Answer:

11 protons

Explanation:

Sodium (Na)'s atomic number or proton number is 11, which means it contains 11 protons

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3 years ago

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Mercury can be obtained by reacting mercury(I) sulfide with calcium oxide. How many grams of calcium oxide are needed to produce

OLga [1]

First, 55 g of Hg is 3.65 moles because one mole of Hg has a molar mass of 200.59

Then, the mole ratio of Hg to CaO is 8:4 or 2:1. SO we divide 3.65 by 2 to get 1.82 moles of CaO

This is the same as 102.06 grams because one mole of CaO has a molar mass of 56.0774

Hope this helps!

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3 years ago

What is the frequency of a red light with a wavelength of 6.98 x 10^-6

nevsk [136]

Answer:

frequency of light = $4.2\times 10^{-13}$

Explanation:

we know that relation between frequency and wavelength of light is

frequency × wavelength = speed of light.

therefore frequency = $\frac{c}{wavelength}$

= $\frac{3\times 10^{8}}{6.98\times 10^{-6}}$

= $4.2\times 10^{-13}$

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. Assume that a recent study found that a chemical in a popular sports drink could cause a cell to undergo mitosis at an unregul

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Complete the balanced equation: Cu(NO3)2 + Na2CO3 > ?

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I think its CuCO3+NaNO3 but idk if its right

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