Answer:
n = 2 moles (1 sig-fig)
Explanation:
Using the Ideal Gas Law equation (PV = nRT), solve for n (= moles) and substitute data for ...
pressure = P(atm) = 100atm
volume =V(liters) = 50L
gas constant = R = 0.08206L·atm/mol·K
temperature = T(Kelvin) = °C + 273 = (35 + 273)K = 308K
PV = nRT => n = PV/RT = (100atm)(50L)/(0.08206L·atm/mol·K)(308K)
∴ n(moles) = 1.978moles ≅ 2 moles gas (1 sig-fig) per volume data (= 50L) that has only 1 sig-fig. (Rule => for multiplication & division computations round final answer to the measured data having the least number of sig-figs).
The spoon will get warmer as it takes in the heat of the water
I believe so because the oxygen goes from 0 to 2- and magnesium goes to 2+ so the oxygen is being reduced and the magnesium is begin oxidized.
Because they are not endangered and they probably will be endangered soon
One reason may be that iron is a much heavier metal, and a much better conductor of heat and electricity. Iron would lead to some issues after a while, and repairs may end up costing more than it would have cost to just buy aluminum in the first place.
So, basically just because of each one's different ability to conduct heat and electricity.
