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Zn (s) + 2HCl (liq) -> H2 (g) + ZnCl2 (s), How many moles of ZnCl2 form when 6.3 mol of Zn reacts?
Calculate the empirical formula for a chemical compound which gives the following analysis: 65.2 g scandium and 34.8 g oxygen.
CaCN2 + 3 H2O -> CaCO3 + 2 NH3 . How much CaCO3 is produced if 47.5 moles NH3 are produced?
The men's world record for swimming 1500.0 m in a long course pool (as of 2007) is 14 min 34.56 s. At this rate, how many seconds would it take to swim 0.800 miles.
Calculate the percent (by volume) of air that would be displaced when all of theN2 (l) get evaporated. it is given that Liquid nitrogen has a density of 0.807 g/mL
Determine how many moles of carbon dioxide should be combined to the system to bring the equilibrium carbon monoxide concentration to 0.715 mol/L?
Use the observations and arrange the following five reduction half-cell reactions in order, the one with the largest positive reduction potential listed first.
The specific heat of silver is 0.235 J/g·K. Its melting point is 962°C, and its heat of fusion is 11.3 kJ/mol. What quantity of heat, in joules, is required to change 7.50 g of silver from solid at 25°C to liquid at 962°C?
It required 71.5 mL of a 0.155 M KNO3 solution to fully react the copper in the ore sample. What was the percent copper in the ore.
It is important to know if a particular molecule is composed of elements with different electronegativities as well as the structure of the particular molecule to explain the physical properties of the molecule.
Important information about Conceptual Organic chemistry and What chemical tests might be used to distinguish between pentanal and 2- pentanone; between benzyl alcohol and diphenylmethanol?
What is the molar mass of a gas if 0.358 g of the gas occupies a volume of 186 mL at 5.00C and 1.10 atm.
A 86 gram solution of silver nitrate contains 14 grams of AgNO3. What is the percent by mass of silver nitrate in this solution.
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