Express the result of the following calculation in scientific notation: 0.0845 cm 2 ÷ 30.2 cm
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In the following reaction, which species is oxidized?8NaI +…
In the following reaction, which species is oxidized?8NaI + 5H2SO4 →4I2 + H2S + 4Na2SO4 + 4H2O
From the following pair choose the one with the larger radiu…
From the following pair choose the one with the larger radius: S or S-2.
When the following equation is balanced in acidic solution;…
When the following equation is balanced in acidic solution; NO3- + I- → IO3- + NO2the coefficient of NO3- is:
A [m] gram sample of potassium chlorate was decomposed accor…
A [m] gram sample of potassium chlorate was decomposed according to the following equation:2KClO3 → 2KCl + 3O2How many moles of oxygen are formed?
The density of gasoline is [d] g/mL at 20 oC. What is the m…
The density of gasoline is [d] g/mL at 20 oC. What is the mass of one gallon of gasoline? (1 qt = 0.9463 L, 4 qt = 1 gal) (answer in grams)
What volume (in liters) is occupied by [m] g of methane, CH4…
What volume (in liters) is occupied by [m] g of methane, CH4, at [t] oC and [p] atm?
Suppose the following reaction is carried out starting with…
Suppose the following reaction is carried out starting with 103 grams of Ca3(PO4)2 and 75.0 grams of H2SO4. Which substance is the limiting reactant? (Hint: calculate the T.Y. for calcium sulfate first.)Ca3(PO4)2 + 3H2SO4 → 3CaSO4 + 2H3PO4
An oxygen sample has a volume of [v] L at [t] oC and [p] tor…
An oxygen sample has a volume of [v] L at [t] oC and [p] torr. How many oxygen molecules does it contain?
Give (in order) the correct coefficients to balance the foll…
Give (in order) the correct coefficients to balance the following reaction:H2SnCl6 + H2S → SnS2 + HCl