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RUDIKE [14]
3 years ago
6

What problem can fossil fuel create for life on earth?

Chemistry
1 answer:
Darya [45]3 years ago
4 0
Pollution and rising temperatures
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All of the following are exothermic reactions except,
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Exothermic reactions release heat the surrounding. So Freezing? 
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Can somebody plz help answer these true or false questions correctly thanks! (Only if u for sure know them) :)
asambeis [7]

Answer:

1. False

2. True

3. False

4. True

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Explanation:

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A 0.10 M solution of Na2HPO4 could be made a buffer solution with all of the following EXCEPT ________.NaH2PO4K3PO4Na3PO4H3PO4
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The answer is: H₃PO₄.

A phosphoric acid is three protic acid, which means that in water release tree protons.

Phosphoric acid ionizes in three steps in water.

First step: H₃PO₄(aq) ⇄ H₂PO₄⁻(aq) + H⁺(aq).

Second step: H₂PO₄⁻(aq)⇄ HPO₄²⁻(aq) + H⁺(aq).

Third step: HPO₄²⁻(aq) ⇄ PO₄³⁻(aq) + H⁺(aq).

Species that are present: H₃PO₄, H₂PO₄⁻, HPO₄²⁻, PO₄³⁻ and H⁺.

A buffer can be defined as a substance that prevents the pH of a solution from changing by either releasing or absorbing H⁺ in a solution.

Buffer is a solution that can resist pH change upon the addition of an acidic or basic components and it is able to neutralize small amounts of added acid or base, pH of the solution is relatively stable.

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3 years ago
Which type of wave interaction is shown by the water waves in the photo?
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I think A but I’m not sure so
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2 years ago
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WILL GIVE BRAINLIEST!! Determine the volume of a container that holds 2.4 mol of gas at STP.
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Answer:

2.4 mol x 22.4 liter = 53.76 liters

1 mole

Explanation:

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