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When 56.0 g calcium and 34.7 g nitrogen gas undergo a reaction that has a 88.0% yield, what mass of calcium nitride forms?
What is the molecular formula of a compound given the molar mass of the compound is 205.4 g/mol and the empirical formula is C3H5.
Celsius the initial concentration of the three gases are.3M H 2 S,.3H 2 and .150 S 2 you just need to determine the equilibrium concentrations of all these given 3 gases?
Determine the mass of snow that can be completely melted - Determine the mass of snow (frozen water) that can be completely melted with the application
What will be the likely effect of clearing forests and converting them to grasslands and crops on (a) the earth's reflectivity (albedo) and (b) the earth's average surface temperature?
Which of the following describes the best way to prepare 500. mL of a 0.20 M solution of benzene (C6H6?)?(78.11 g /?mol) dissolved in carbon tetrachloride (CCl4?)?(153.82 g /?mol).
what the oxidation state P in PO4^-2? what the oxidation state O in PO4^-2?
You have 493 mL of chlorine trifluoride gas at 699mmHg and 45 degrees Celsius. What is the mass (in grams) of the sample.
Find the Density of a substance with a mass of 51.2g and a volume of 150mL
What mass of sucrose should be combined with 483 of water to make a solution with an osmotic pressure of 8.50 at 320 ? (Assume the density of the solution to be equal to the density of the solvent.)
For the unbalanced equation _Al+_O2=_Al2O3. How many moles are needed to form 2.3 moles of aluminum oxide.
Two scientists are experimenting with pure samples of isotope X, a highly radioactive substance. The first scientist has a sample with a mass of 20 grams.
Write a balanced net ionic equation for the neutralization reaction and Tartaric acid,( C4H6O6) , has two acidic hydrogens.
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