4 years ago

What does not release carbon dioxide into the atmosphere

2 answers:

6 0

<span>There are both natural and human sources of carbon dioxide emissions. Natural sources include decomposition, ocean release and respiration. Human sources come from activities like cement production, deforestation as well as the burning of fossil fuels like coal, oil and natural gas. </span>

frez [133]4 years ago

6 0

yo mama doesn't you big headed person

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A flask contains 2.0 mol of He gas at 25°C and 1.00 atm. How much He gas, in grams, must be added to increase the pressure to 2.

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Mass of He required = 8.0 g

Explanation:

Given,

Initial moles of He = 2.0 mol

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final pressure = 2.00 atm

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PV = nRT

As V, R and T are constant

So, $\frac{P_1}{P_2} =\frac{n_1}{n_2}$

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