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3 years ago

What is the capacity to do work known as?

Chemistry

2 answers:

Butoxors [25]3 years ago

6 0

Answer:

Energy

Explanation:

apeks

Jlenok [28]3 years ago

5 0

Energy

Simply Energy.

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Balance each skeleton reaction, use Appendix D to calculate E°cell, and state whether the reaction is spontaneous:(b) Hg₂²⁺(aq)

Olegator [25]

The given reaction is not spontaneous.

We must recognize changes in oxidation states that take place across elements in order to balance these equations. To accomplish this, keep in mind following guidelines:

A neutral element on its own has an oxidation number of zero.For a neutral molecule, the total number of oxidations must be zero.The net charge of an ion is equal to the sum of its oxidation numbers.In a compound: hydrogen prefers +1, oxygen prefers -2, fluorine prefers -1.In a compound with no oxygen present the other halogens will also prefer -1.

One of the mercury atoms is oxidized from +1 to +2 in the simple aqueous ion, for a loss of 1 electron.

Oxidation half-reaction:

$0.5 Hg^{2+} _{2} (aq)$ → $Hg^{2+} (aq) + 1e^-$

$E^o _{ox} = - 0.92 V$

The other mercury is reduced from +1 to zero in mercury metal, for a gain of 1 electron.

Reduction half-reaction:

$0.5 Hg^{2+} _{2} (aq) + 1 e^-$ → $Hg(l)$

$E^o _{red} = 0.85V$

This is a disproportionation redox reaction !

Net reaction:

$Hg^{2+} _{2} (aq)$ → $Hg^{2+} (aq) + Hg (l)$

$E^o _{cell} = 0.85 - 0.92 = -0.07V$

The cell potential is negative so this reaction is NOT spontaneous.

To learn more about the non spontaneous reaction please click on the link brainly.com/question/20358734

#SPJ4

5 0

2 years ago

This solid is ductile and conducts electricity

AVprozaik [17]

The answer would be a metal, most likely copper. hope this helped (:

8 0

4 years ago

Whats the primarry reason for a diffrence in climate between new york and florida

34kurt

Answer:

Explanation:

Florida is much closer to the sun as compared to New York and seems to be much warmer as compared to New York even in winter and summer because of the latitude.

5 0

3 years ago

Read 2 more answers

Complete the equation for the reaction of NaHCO 3 ( s ) NaHCO3(s) with HC 2 H 3 O 2 ( aq ) HC2H3O2(aq) . Include phase symbols.

UNO [17]

Answer:

NaHCO 3 ( s ) + HC 2 H 3 O 2 ( aq ) ⟶NaHC2H3O2 + H2CO3 → H2O + CO2

NaHCO3 + HC2H3O2 → NaC2H3O2 + H2O + CO2

Explanation:

Sodium bicarbonate and acetic acid reacts to form Sodium acetate and carbonic acid. The carbonic acid then produce carbon dioxide gas and water after undergoing decomposition.

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3 years ago

How many moles of atoms are contained in 15.7 g of Bromine

Vlada [557]

1 mol of Br = 79.9 g

15.7 g / 79.9 g = 0.196 moles of atoms

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4 years ago