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GarryVolchara [31]
3 years ago
9

Using the reactivity series of metals, classify which would be the cathode in a reaction involving these two metals as electrode

s.
Na or Ca?

Chemistry
2 answers:
Georgia [21]3 years ago
8 0

Answer: Na or Ca?

Explanation:

babymother [125]3 years ago
4 0

Answer:

Calcium will be the anode and sodium will be the cathode

Explanation:

I know that your confusion stems from the relative positions of the two metals in the activity series but I want you to get something clearly. Sodium metal is more reactive than calcium metal but calcium ion is more reactive (a better reducing agent) than the sodium ion.

Hence, in an electrochemical cell, a better reducing agent will function as the anode. This is why calcium is the anode in the cell mentioned in the question. Calcium ion has a reduction potential of -2.87 V while sodium ion has a reduction potential of -2.71 V, hence the answer.

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A "FORCE" is required to cause acceleration or cause an object to move.
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calculate how many Liters of 0.50 M silver nitrate solution you will need to provide the 2.4x10^-3 moles of silver nitrate
wlad13 [49]

Answer:

4.8x10⁻³ Liters are required

Explanation:

Molarity is an unit of concentration in chemistry defined as the ratio between moles of solute (In this case, silver nitrate) and liters of solution.

The 0.50M solution contains 0.50 moles of silver nitrate per liter of solution.

To provide 2.4x10⁻³ moles Silver nitrate are required:

2.4x10⁻³ moles * (1L / 0.50 moles) =

<h3>4.8x10⁻³ Liters are required</h3>
8 0
3 years ago
Urgent plzz help meeee thx I HAVE EXAMEEE
USPshnik [31]

Answer: 2Ag^{+}(aq)+CO_3^{2-}(aq)\rightarrow Ag_2CO_3(s)

Explanation:

Spectator ions are defined as the ions which does not get involved in a chemical equation or they are ions which are found on both the sides of the chemical reaction present in ionic form.

The given chemical equation is:

2AgF(aq)+Na_2CO_3(aq)\rightarrow Ag_2CO_3(s)+2NaF(aq)

The complete ionic equation is;  

2Ag^{+}(aq)+2F^-(aq)+2Na^+(aq)+CO_3^{2-}(aq)\rightarrow Ag_2CO_3(s)+2Na^+(aq)+2F^-(aq)

The ions which are present on both the sides of the equation are Na^+ and F^- and are not involved in net ionic equation.

Hence, the net ionic equation is :

2Ag^{+}(aq)+CO_3^{2-}(aq)\rightarrow Ag_2CO_3(s)

6 0
3 years ago
What does expunge mean?
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It means is where something is removed or erased completely or something unwanted or unpleasant.


Hope this helps and the right meaning of expunge.

3 0
3 years ago
How much heat is required to raise the temperature of 10.35g of CCl4 from 32.1°c to 56.4°c
Travka [436]
We are going to use this formula:

Q = M*C*ΔT

when Q is the heat required 

M is the mass of CCl4 = 10.35 g

C is the specific heat capacity of CCl4 = 0.874J/g.c

and ΔT the change in temperature = 56.4 - 32.1 °C =24.3 °C

∴ Q = 10.35g * 0.874 * 24.3 °C

       = 219.8 J
4 0
4 years ago
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