Answer:
gains two electron!
Explanation:
When a barium atom forms its most common ion, it gains two electron!
A - Stoichiometry measures the amount of product obtained.
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Answer:
Islands and coastal places have moderate pleasant climates.
Explanation:
The specific heat of water is very large as compared to most of the common substances. The result of this characteristic is that water heats slowly and cools slowly. In coastal region and islands, the air above lands gets heated up quickly as compared to air above water. The hot air is lighter and rises. The cool air above water rushes to takes its place. This is known as sea breeze. At night, the wind blows from land towards the sea as land cools down faster than water. land breeze occurs at night. Due to sea breeze and land breeze, moderate pleasant climates characterizes the islands and coastal regions.
The options in the question are:
a) +0.46 V
b) +0.617 V
c) +1.39 V
d) -0.46 V
e) +1.21 V
Answer:
b) +0.617 V
Explanation:
The equation shows that the anode is Sn2+/Sn4+ while the cathode is Fe3+/Fe2+.
The E° cell is obtained from E°cathode - E°Anode
E°cathode= 0.154V
E°Anode= 0.771V
E° cell= E°cathode - E°Anode= 0.771-0.154=0.617
