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2 years ago

Reacting Solutions of Aluminum Chloride with Potassium Hydroxide

Chemistry

2 answers:

Zigmanuir [339]2 years ago

8 0

The answer to ur question is A

gizmo_the_mogwai [7]2 years ago

7 0

1Al2(SO4)3 + 3ZnCl2 → 2AlCl3 + 3ZnSO4

The coefficients represents moles. There is 1 mole of Aluminum Sulfate, 3 moles of Zinc(II) Chloride, 2 moles of Aluminum Chloride, and 3 moles of Zinc(II) Sulfate.

Now add all the coefficients/moles.

9 is the sum of all the coefficients.

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For the following reactions, write a balanced equation using half-reactions and calculate the voltage to be expected.

Iteru [2.4K]

a) $2Na(s) +2H_2O(I)$ → $2Na^+(aq) + OH^-(aq)+ H_2(g)$

b) $2Ag (s) +2H^(aq)$ → $2 Ag^+ (aq) +H_2(g)$

<h3>What are half-reactions?</h3>

The half-reaction method is a way to balance redox reactions. It involves breaking the overall equation down into an oxidation part and a reduction part.

$2Na(s) +2H_2O(I)$ → $2Na^+(aq) + OH^-(aq)+ H_2(g)$

$E^0 cell = E^0 (reduction) - E^0 (oxidation)$

= $E^0(\frac{H_2O}{H_2}, OH^-) -E^0(Na^+/Na)$

= -0.83 - (-2.71) =1.88V

$2Ag (s) +2H^(aq)$ → $2 Ag^+ (aq) +H_2(g)$

$E^0cell$ = $E^0(H^+/H_2) -E^0(Ag^+/Ag)$

$E^0cell$ =-0. - (0.8) =-0.8V

Learn more about the half-reactions here:

https://brainly.in/question/18053421

#SPJ1

8 0

2 years ago

Referring to an activity series, which of the following combinations of reactants would not produce a successful single-replacem

loris [4]

I believe the answer is Ca + MgSO4

8 0

3 years ago

Read 2 more answers

Dissolving salt in water reduces the intermolecular forces between water molecules. What most likely happens to the surface tens

Svetllana [295]

If we dissolve salt in water they will reduce the intermolecular forces between water molecule and this will decrease the surface tension.

Surface tension is due to cohesive forces (the forces between molecules of same substance) hence as cohesive forces decreases the surface tension also decreases

7 0

3 years ago

Read 2 more answers

Balance the following equation:<br>sodium + Sodium Nitrate = Sodium Oxide + Nitrogen

-Dominant- [34]

Na + NaNO3 = Na2O + N2

4 Na + 2 NaNO3 = 6 Na2O + N2

6 Na on each side
2 N on each side
6 O on each side

6 0

3 years ago

Plsplsplsplsplsplsplsplsplspls help

MA_775_DIABLO [31]

Answer:

this is difficult but simple to answer

Explanation:

all atoms move in 1 direction no more than 2

6 0

3 years ago