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adelina 88 [10]
3 years ago
14

PLS HELP S O S *will give brainliest*

Chemistry
1 answer:
Veseljchak [2.6K]3 years ago
8 0

Answer:

ARE U STILL GIVING BRAINLIEST?

Explanation:

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zaharov [31]

Answer:

D.

Explanation:

I took this test as a freshman and this was the only question of 4 that I can remember

6 0
4 years ago
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Use Hess law and the following equations to calculate H for the reactio below
aleksandr82 [10.1K]

Answer: B2H6 (g) + 3O2 (g) → B2O3 (s) + 3H2O (g) (ΔH = -2035 kJ/mol) 3H2O (g) → 3H2O (l) (ΔH = -132 kJ/mol) 3H2O (l) → 3H2 (g) + (3/2) O2 (g) (ΔH = 858 kJ/mol)

Explanation: ??

8 0
3 years ago
How does the shape of the Earth affect the climate of different regions?<br><br>will give brainliest
borishaifa [10]
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7 0
3 years ago
how many H+ ions are in a solution with a pH of 2 and how many H+ ions are in a solution with a pH of 6?
LiRa [457]

Answer:

i) pH = 2

pH = -log(H+)

:- (H+) = 10^(-2)

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ii) pH = 6

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Explanation:

By definition: pH = -log(H+).

Given your pH, solve for the H+ using the the following log rule:

if a = (+/-) log (b) then

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Also remember unit of concentration is molar (M)

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Irina18 [472]
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