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Stella [2.4K]
3 years ago
8

What are two natural and two man-made causes for sudden catastrophic change to an ecosystem

Chemistry
1 answer:
malfutka [58]3 years ago
8 0

Answer:

Some changes that can occur in ecosystems are seasons, tide cycles, population sizes, succession, evolution, landscape changes, and climate changes.

Explanation:

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2 years ago
What is electron configuration of oxygen in its excited state​
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1 {s}^{2} 2 {s}^{2} 2 {p}^{4}

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The Aurora Borealis or northern light occur when solar flares react with the atmosphere near the north poles. The Aurora give of
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Which action would speed up a chemical reaction in aqueous solution?
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Adding more powdered reactants
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What is the solubility of methylacetylene (in units of grams per liter) in water at 25 °C, when the C3H4 gas over the solution h
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Answer:

The solubility of methylacetylene is 0,11 g L⁻¹

Explanation:

Henry's law is a gas law that states that the amount of dissolved gas in a liquid is proportional to its partial pressure above the liquid.

The formula is:

C = kH P

Where C is solubility of the gas (In mol/L)

kH is Henry constant (9,23x10⁻² mol L⁻¹ atm⁻¹)

An P is partial pressure (0,301 atm)

Solving, C = 2,78x10⁻³ mol L⁻¹. In grams per liter:

2,78x10⁻³ mol L⁻¹ₓ \frac{40 g}{mol} = <em>0,11 g L⁻¹</em>

<em></em>

I hope it helps!

7 0
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