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Write equations for the dissociation of the following in water. Include physical states for all species.(NH4)2SO4
the gas with an initial volume of 24.0 l at a pressure of 565 mmhg is compressed until the volume is 16.0 l. what is
The decomposition of 3.32 g CaCO3 yields 1.24 g CaO. What is the percent yield of this reaction? CaCO3(s) -> CaO(s) + CO2(g)
What is the density of lead (in ) if a rectangular bar measuring 0.500 in height, 1.55 in width, and 25.00 in length has a mass of 220.9 ?
What would you observe if Cu2+ and Bi3+ was treated with 6M NHO3 rather than concentrated NH3
Fluoride (F-) is toxic element (anion) that can be lethal at 0.20 g/70kg of body weight. But because F- at low levels (1ppm) aids in healthy teeth, municipal water sources normally add this level of fluoride.
Why pure oxygen is often administered to victims of CO poisoning explain using le chatelier's principle? Hb (CO) aq + O2 aq is HbO2 aq + CO aq
fifty mililiters of 1.00m hno3 was added to 50.5 ml of 1.00m of naoh solution. calculate the mass of the reaction
Consider a cylindrical container partially filled with ethanol (C2H6O). Using the model in which ethanol vapor pressure is a result of equilibrium between the rate of ethanol evaporation and condensation.
Calculate the energy in joules required to ionize a hydrogen atom when its electron is initially in the n = 4 energy level.
which salts are more effective for cold and hot packs kno3 nh4no3 mgso4 cacl2 mgcl2? which are most cost effective?
The heat of vaporization of liquid nitrogen is determined by measuring the change in temperature of a known sample of warm water when liquid nitrogen is added.
What effect on the value of Ca(OH)2's Ksp (6.5x10^-6 ) would sucking up some suspended calcium hydroxide solid have. Would the Ksp value be higher or lower than the normal value. Why
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