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Slav-nsk [51]
2 years ago
13

SKJIEDHISJLKDSKSJKA HELPP

Chemistry
1 answer:
Vinil7 [7]2 years ago
6 0

Answer:

agree

disagree

agree

hope it help u

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castortr0y [4]

Answer:

The 5 chemical changes are. 1) Tarnish, 2) Rust, 3) Dissolve, 4) Burn, 5) Bake.

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3 years ago
What is the pH range for an acid? <br> 0-7<br> 7-14<br> 7<br> 0
olga nikolaevna [1]
<h3>Answer: Choice A)  0-7</h3>

Explanation:

If the pH is between 0 and 7, then we have an acid.

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7 0
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Write a balanced overall reaction from these unbalanced half-reactions sn and ag
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Balance each one by adding electrons to make the charges on both sides the same:

Sn--> Sn2+ + 2 e-
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Now, you have to have the same number of electrons in the two half-reactions, so multiply the second one by 2 to get:

2 Ag+ + 2 e- --> 2 Ag

Now, just add the two half reactions together, cancelling anything that's the same on both sides:

2 Ag+ + Sn --> Sn2+ + 2 Ag

And you're done.
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2 years ago
What energy is using the telephone?
kakasveta [241]

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i kinda guessed.

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