When E° cell is an electrochemical cell which comprises of two half cells.
So,
when we have the balanced equation of this half cell :
Al3+(aq) + 3e- → Al(s) and E°1 = -1.66 V
and we have also this balanced equation of this half cell :
Ag+(aq) + e- → Ag(s) and E°2 = 0.8 V
so, we can get E° in Al(s) + 3Ag (aq) → Al3+(aq) + 3Ag(s)
when E° = E°2 - E°1
∴E° =0.8 - (-1.66)
= 2.46 V
∴ the correct answer is 2.46 V
Answer:
Physical Change
Explanation:
The bush is changing shapes, not changing what it is.
Answer:A
Explanation:For a given amount of solute, smaller particles have greater surface area. With greater surface area, there can be more contact between particles of solute and solvent.
Group 17 is the most readily reduced elements on the periodic table, meaning that they are so close to being a stable elements, only missing 1 electron to complete their valance electron shell. Thus they will essentially react with anything to get that last electron!
Group 1 elements are extremely reactive because they are the most readily oxidized, they are very close to reaching stability by giving up only 1 electron. Thus they will react with almost anything to give up their electron.
<h3><u>Answer;</u></h3>
CaCO3(s)+ 2 H+(aq) → Ca+2 + CO2(g) + H2O(l)
<h3><u>Explanation</u>;</h3>
- The reaction of an acid with calcium carbonate is an example of an acid-base reaction.
- In these reactions, an acid will react with a base to form a salt and water. The acid was neutralized by the base.
- For example, CaCo3 will neutralize HCl by the following equation:
<em>2HCl(aq) +CaCO3(s) → CaCl2(aq) + H2O(l) + CO2(g)</em>
