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Presume you were dissolving a metal such as zinc with hydrochloric acid. Explain how would the particle size of the zinc influence the rate of its dissolution?
What is the difference between a certain number and an uncertain number in a measurement. which certain and uncertain numbers count as the significant figures of a measurement
Cake alum, aluminum sulfate, is commonly used to purify sewage. What mass of precipitate, aluminum hydroxide, forms whn 185.5 mL of 0.533 M NaOH is added to 627 mL of a cake alum solution that contains 15.8 grams per liter
Zinc phosphate (Zn3(PO4)2) has a solubility product constant Ksp = 9.0 x 10^-33. What is the solubility of zinc phosphate in the following problems. answer them seperately... a) ...pure water? b) ...0.02 M ZnCl2? c) ...0.005 M Na3PO4
Experiment you measured teh effect of changing temperature on the pressure of a conatined gas at constant volume.
nitroglycerin contains 60 as many carbon atoms as hydrogenatoms three times as many oxygen atoms as nitrogen atoms and
Which of the following is true about any R enantiomer. A. it has a + rotation b. it has a - rotation c. it is a mirror image of the S enantiomer is it A only B only A and C or B and C
when metabolized an orange provides 445 kj of energy. what mass of water could this amount of energy raise from 25.0
What is the maximum amount (in grams) of sulfur dioxide that can be produced by the reaction of 1380 g of dihydrogen sulfide with 2810 g of oxygen according to the balanced equation below
A metal sulfide, M2(CO3)3, has a Ksp of 3.30x10^-42. What is the molar solubility of this sulfide in water. Assume the sulfide behaves ideally (ignore hydrolysis effects).
Which of the following represents the maximum available useful energy when a system changes spontaneously from a given initial state to a given final state
State is the Lewis electron dot structure for SeO2 O--Se--O with one of the oxygens double bonded to Se as well as 6 electrons around the single bonded O and 4 electrons around the double bonded O and 2 electrons on Se. what is the right structure..
2.79 g of N2O reacts completely with an equimolar amount of NO2 to form elemental nitrogen and oxygen. How much N2 is formed in this process
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