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when 9.8 g of aluminum oxide (Al2O3) decomposes, how many grams of aluminum metal are produced?
A 12.0g sample of a gas has a volume of 5.25L at 29 degrees celcius and 764mmhg . If 2.7g of the same gas is added to this constant 5.25L volume and the temperature raised to 67 degrees celcius.
Chemical reactions are typically faster when a catalyst is added. This is because... 1. Molecules are moving faster when a catalyst is added
Calculate the specific heat capacity of this sample of mercury if The amount of energy required to heat 2.00 grams Hg from 50 degrees C to 85 degrees C is 9.87 J.
What are the three major buffer systems of the body and what are the chemical equations
how much of heat is gained by nickel when 500 g of nickel is warmed from 22.4 to 58.4C?
How does one predict the regiochemistry of the products of aromatic reactions like nitration? What factors are responsible for the product ratios seen in such reactions?
Three gases, hydrogen, helium, and krypton are confined in a 10.0 L vessel at a pressure of 6.00 atm. The vessel contains 4.00 moles of hydrogen, 3.00 moles of helium, and 5.00 moles of krypton.
the system achieves thermoequilibrium at atmospheric pressure. Assume no heat loss to the surroundings. What is the final temperature of the combined metal sheets?
If 20.0mL of 0.00200 M Fe(NO3)3 is diluted to 50.0mL, what is the concentration of Fe+3 in the diluted solution?
Determine the mass of Cr 3 + in the original solution if The total mass of the precipitate = 49.6 .
The dipole moment of HBr (a polar covalent molecule) is 0.784 (debye), and its percent ionic character is 11.6 . Estimate the bond length of the bond in picometers.
What is its melting point in degrees Fahrenheit? Water has a boiling point of 100°C. What is its boiling point in Kelvin?
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