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Write the complete ionic equation fro the double displacement reaction that occurs when (Aq) soulutions of barium nitrate, Ba(NO3)2, and sodium chromate (NA2CrO4) are mixed) what are the spectator ions and the net ionic equation.
1. a nonelectrolyte solute of 2.79grams is dissolved in h2o to make a solution of 235 ml at 29 degree celsius an
What is the final temperature after 336J of heat energy is removed from 25.0g of Water at 19.6C
What is the freezing point of a solution that contains 10.0 g of glucose (C6H12O6) in 100 g of H2O. Kf for water is 1.86oC/m
Calculate the pH at the equivalence point for the titration of 0.210M methylamine(CH3NH2) with 0.210M HCl. The Kb of methylamine is 5.0*10^-4
A hydrate of calcium chloride contains 49.3% water and has a formula weight of 219 g/mol. Calculate the molecular formula of the hydrate.
In a calorimeter, 100 g of ice melts at 0oC. The enthalpy of fusion of the ice is 334 J/g. How much heat was absorbed.
A red laser pointer emits light with a wavelength of 650 nm. A) What is the frequency of the light. B) What is the energy of 1.00 mole of these photons
The gas pressure in an aerosol can is 1.8 atm at 25oC. If the gas is an ideal gas, what pressure would develop in the can if it were heated to 475oC
Predict which of the compounds should undergo a more rapid reaction with potassium tert-butoxide. EXPLAIN your REASONING and give the product of the reaction?
Find the volume if Zinc Coating(both sides) the thickness of Zinc Coating in cm (both sides) and the thickness of Zinc Coating in cm (one side)?
Given that silicon and oxygen form a diatomic molecule of siO, write the orbital (electron) configuration for the molecule
When 0.105 mol propane is burned in an excess of oxygen, how many moles of oxygen are consumed? The reaction is C3H8 + 5 O2 ? mol O2 = 0.105 mol C3H8 How many grams of nitric acid are produced for every 100.0 g NO2 that reacts?
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