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leonid [27]
3 years ago
15

Rust forms when the iron is exposed to water and oxygen. True False

Chemistry
2 answers:
Montano1993 [528]3 years ago
8 0
True

explanation:

i looked it up
ANTONII [103]3 years ago
8 0

Answer: true

Explanation:

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What's larger centimeter or meter?
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2 years ago
HC2H3O2 (aq) + H2O (l) ⇔ C2H3O2- (aq) + H3O+ (aq) Ka = 1.8 x 10-5
marin [14]

The concentration of [H3O⁺]=2.86 x 10⁻⁶ M

<h3>Further explanation</h3>

In general, the weak acid ionization reaction  

HA (aq) ---> H⁺ (aq) + A⁻ (aq)  

Ka's value  

\large {\boxed {\bold {Ka \: = \: \frac {[H ^ +] [A ^ -]} {[HA]}}}}

Reaction

HC₂H₃O₂ (aq) + H₂O (l) ⇔  (aq) + H₃O⁺ (aq) Ka = 1.8 x 10⁻⁵

\tt Ka=\dfrac{[C_2H_3O^{2-}[H_3O^+]]}{[HC_2H_3O_2]}}\\\\1.8\times 10^{-5}=\dfrac{0.22\times [H_3O^+]}{0.035}

[H₃O⁺]=2.86 x 10⁻⁶ M

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3 years ago
You operate a nuclear reactors and want to use fissionable mass that will sustain a slow control what type of mass will you use
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What is the molar mass, in grams, of a mole of an element equal to?
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