Question

50 points !!


how did this number come here

class 12 ​

Answer 1

for finding standard cell potential :- emf of right cell - emf of left cell

and here cadmium is having -0.40 as standard reduction potential and -0.74 is chromium's standard reduction potential

E=standard reduction potential of Cd-standard reduction potential of Cr

so,-0.40-(-0.74)=0.34v

Answer 2

Thunder is a very loud sound that is made sometimes during a very big rain storm. It can sound like a boom, a crash, or a rumble. Thunder is made when lightning strikes. The energy from the lightning heats up the air so much that it makes a kind of explosion.