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Problem- An iron ore contains 38% Fe2O3 by mass. What is the maximum mass of iron that can be recovered from 13.6kg of this ore?
Show all work, use additional paper if necessary.
If the height of the candes in the container increases at the rate of 0.270 cm/s, at what rate (kilograms per minute) does the mass of the candies in the container increase?
Explain why are fluorescence and absorbance wavelength the same for atomic species
An equilibrium mixture of NO(g), O2(g) and NO2(g) is allowed to expand from 1.0 to 2.0 L at a constant temperature. Given that 2 NO(g) + O2(g) 2 NO2(g) which of the following statements is correct
Can some explain clearly how to determine the valence electrons of transitional metals and also their ions. for ex Mo, Mo2+, Ag, Pb. Pb2+. Confuse about what makes up their outer shell.
How do you figure out how to make a solution of 50mL of 3.6M hydrogen peroxide (H2O2) from 30% hydrogen peroxide
a gas balloon has a volume of 106.0 liters when the temperture is 45 clesuis and the pressure is 740.0 mm of mercury.
Explain what happens when a balloon with static electricity is brought next to a running stream of water. Why does this happen? Netties answer during class our instructor took a balloon and rub it against the TV monitor.
using stirlings approximations and lagranges method of undetermined multipliers. determine the expressions for the
Why should a distilling flask be filled to not more than two-thirds of its capacity at the beginning of a distillation procedure?
Write the chemical equation for the overall reaction that would occur when the original compound was converted to a chloride
A student places 2.0 moles of methylamine in 500ml of water. what is the pH? the Kb of methylamine is 4.4x10^-4.
A weak base indicator (In) may be considered to be in equilibrium with HIN+ and OH- ions. The color of the non-ionized molecule is green and that of HIn+ is yellow. What would be the color of this indicator in a very acidic solution? explain. HINT..
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