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Phoenix [80]
3 years ago
7

In potassium-argon dating, how does the proportion of remaining potassium in a rock or fossil change over time?

Chemistry
2 answers:
lara [203]3 years ago
8 0

Answer:

what was the answer?

Explanation:

wariber [46]3 years ago
7 0

Answer:

it decreases

Explanation:

pennfoster

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Answer:

First, balance the half-reactions

Second, equalize the electrons

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For example

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(i) Balancing the half reactions

H₂C₂O₄-------->2CO₂+2H⁺+2e⁻

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(ii)

Equalizing the electrons

5H₂C₂O₄--------->10CO₂+10H⁺+10e⁻  ---here there is a factor of 5

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(iii)

Add the two where electrons and some Hydrogen ions will cancel out

5H₂C₂O₄+6H⁺+2MnO₄⁻---->10CO₂+2Mn²⁺+8H₂O

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3 years ago
Pls help
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Answer:

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