Chemical for both i think, i didn’t understand the second question.
Answer:
we get rain and the water cycle grows our plants too
Explanation:
Answer: A mole is a unit of measurement.
Explanation:
moles= mass/molar mass
for example moles=1000g/342.296 g/mol
moles=2.921 mol
Charge = 1200 * 1.6 * 10^-19 = 1920 * 10^-19
Time = 3.5 µs = 3.5 * 10^-6 s
But Current = charge/time = (1920 * 10^-19) / (3.5 * 10^-6)
So Current becomes 548.5714 * 10^(-19-(-6))
So we have 548.5714 * 10^(-19 + 6) = 548.5714 * 10^(-13)
So we have 5.485714 * 10^(-15)