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kobusy [5.1K]
3 years ago
10

Which of these substances is an example of a solution?

Chemistry
2 answers:
strojnjashka [21]3 years ago
7 0

The solution is concrete

Nataliya [291]3 years ago
7 0

Answer: oil and vinegar dressing

Explanation:

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Part a the disproportionation of mn2+(aq) to mn(s) and mno2(s) in acid solution at 25 ∘c. calculate δg∘rxn.
ollegr [7]

Answer:

ΔG^{o} = -461198.3 J

Explanation:

Gibbs free energy is defined as the energy associated with a given chemical reaction which can be used to do work. Firstly, we need to figure out the chemical equation for the given problem. For the given problem, the chemical equation is:

Mn^{2+} _{(aq)} + 2e^{-}⇒Mn_{(s)}      E^{o} = -1.18 V

Mn^{2+} _{(aq)} + H_{2}O ⇒MnO_{2(s)} +4H^{+} + 2e^{-}E^{o} = -1.21 V

The addition of the two E^{o} gives the E_{cell} of the equation, i.e. -1.18-1.21 = -2.39 V.

Then, using the equation for ΔG^{o}, we have:

ΔG^{o} = n*F*E^{o} = 2*96485*-2.39 = -461198.3 J

4 0
3 years ago
1. Name the three particles of the atom and their respective charges are:
vovikov84 [41]

a protons

b neutrons

c electrons

I hope this helps :)

4 0
1 year ago
Read 2 more answers
What are some of the global effects of a volcanic eruption?​
EleoNora [17]

Answer:

<h2>People loose their homes</h2>

Explanation:

<em><u>Because of the lava that exploded, it may touch a house which may burn the house</u></em>

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classify each solution as either an acid or a base using the properties that are stated. what are two ways these solutions are s
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Probably too late to help but solution a is likely a base while solution b is an acid.

two similar things: both are aqueous solution and they are not neutral.
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