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The density of aluminum is 2.70 g/cm3 and the density of chromium, is 7.19 g/cm3. If equal masses of aluminum and chromium are transferred to equal volumes of water in separate graduated cylinders, which graduated cylinder would have the greatest volume change? Explain.
What would the absorbance readings be for the acid and base forms of methyl red indicator at the acid wavelength? At the base wavelength?
What is the maximum amount of O2 in grams that can be obtained from 2.00 x 102 g of nitroglycerin?
A cylinder with a moveable piston contains 0.84 mol of gas and has a volume of 328 mL. What will its volume be if an additional 0.27 mol of gas is added to the cylinder? (Assume constant temperature and pressure.)
How much energy is released during the complete combustion of 470 grams of cyclobutane
N2 is .070 moles, O2 is 0.35 moles and CO2 is 0.20 moles, the total is pressure 1.55 atm what is the pressure of N2?
A copper refinery produces a copper ingot weighing 121 lb. If the copper is drawn into wire whose diameter is 8.00 mm, how many feet of copper can be obtained from the ingot.
The half-life of cobalt-60 is 5.27 years. How many milligrams of cobalt-60 remain after 52.7 years if you start with 10.0 mg.
Describe in 75 words the structure of the carbon atom. What types of bonds does carbon form and why?
A 21.496 g sample of magnesium is burned in air to form magnesium oxide and magnesium nitride. when the products are treated with water, 2.813 g of gaseous ammonia are generated.
The first ionization energy of bismuth is Ei1=+703 KJ/mole. What is the longest possible wavelenghth of light that could ionize an atom of bismuth?
Consider the following reactions and select the false statement below. CO2(g) + OH?(aq) ? HCO3?(aq) Cr3+(aq) + 6H2O(l) ? Cr(H2O)63+(aq) A. in Cr(H2O)63+ the Cr3+ is attracted to the H2O molecules via ion-dipole intermolecular forces
Assume that the heat required for the vaporization of the alcohol comes only from the aluminum block and that the alcohol vaporizes at 25.
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