Answer:
Anode half reaction;
Co(s) ----> Co^2+(aq) + 2e
Cathode half reaction;
2Ag^+(aq) + 2e-------> 2Ag(s)
Explanation:
A voltaic cell is an electrochemical cell that spontaneously produces electrical energy from chemical reactions. A voltaic cell comprises of an anode (where oxidation occurs) and a cathode (where reduction occurs). The both electrodes are connected with a wire . A salt bridge ensures charge neutrality in the anode and cathode compartments. Electrons flow from anode to cathode.
For the cell referred to in the question;
Anode half reaction;
Co(s) ----> Co^2+(aq) + 2e
Cathode half reaction;
2Ag^+(aq) + 2e-------> 2Ag(s)
True
(I hate the 20 character limit)
Answer:
n= -13
Explanation:
-22 = -9 + n
first flip the equation
n + -9 = -22
then add 9 beacuse we need to do the opposite to find n
so -22 + -9 = - 13
so n = -13
plz mark brainliest i just need 1 more plz plz plz!
<u>Answer:</u> The volume of balloon at 100°C is 4.46 L
<u>Explanation:</u>
To calculate the final temperature of the system, we use the equation given by Charles' Law. This law states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.
Mathematically,

where,
are the initial volume and temperature of the gas.
are the final volume and temperature of the gas.
We are given:

Putting values in above equation, we get:

Hence, the volume of balloon at 100°C is 4.46 L
Answer:
24 millilitres
Explanation:
The reaction between hydrochloric acid (HCl) and potassium hydroxide (KOH) is as following:
HCl + KOH => KCl + H2O
Here, Molarity of KOH = 0.3 M per liter
1L = 1000ml
60ml = 0.06 L
moles of KOH = 0.3 x 0.060 L = 0.018 mol (Normalize the volumes)
Molarity of HCL = 0.75 M per liter
Therefore, volume of HCl =
= 0.024 L
Hence, volume of HCl = 24 millilitres