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Svetach [21]
3 years ago
12

The fossils in line 4 __ are the ones in line 1

Chemistry
2 answers:
Alex777 [14]3 years ago
8 0
I’m sorry I didn’t understand can you please add more details please thank you
dem82 [27]3 years ago
6 0
Fossils in line 4 are older than the ones in line 1. Fossils in line 1 are the youngest.
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Which of the following statements best compares the pH value of H3PO4 and HCl?
wel

Answer:

Option B. Both have a pH less than 7, but H3PO4 has a lower pH than HCl

Explanation:

Those are acid, so the pH would be < 7.

H₃PO₄ is a weak acid with 3 dissociations

HCl is a strong acid.

pH depends on [H]⁺

H₃PO₄  →  3H⁺  +  PO₄⁻³

HCl →  H⁺  +  Cl⁻

If both acid, have the same concentration, [H⁺]H₃PO₄ > [H⁺]HCl, that's why the pH from the phosphoric will be lower.

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3 years ago
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Answer:

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3 years ago
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Answer:

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Hope it helps :)

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3 years ago
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Explanation:

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