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Use the activity series to determine if a single replacement reaction can be seen to occur. If a reaction occurs, write the net ionic equation.
a) Cobalt metal in a barium iodide solution
b) Tin metal in a copper bromide solution
c) Silver metal in salt water
d) Aluminum metal in a solution of gold(III) chloride
e) Nickel metal in a solution of copper (II) nitrate
Classify each description of a complex by the number of unpaired electrons in the d4 metal ion.
Calculate the mass of sodium chlorate that must be decomposed to form 6.5 g of oxygen. 2NaClO3(s) → 2NaCl(s) + 3O2(g)
Consider radiation of wavelength of 4000 Angestroms, at a temprature of 3000 K. using a rayleighs- jeans law, calculate the energy per unit volume per energy wavelength?
Explain which of the following aqueous solutions has the strongest ion-dipole attractions: 0.3 M FeBr3, 0.6 M CaCl2, 0.5 M Ba(NO3)2, 0.2 M (NH4)2SO4, 0.9 M KOH
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?
enzyme responsible for part of the signaling cascade that leads to replenishment of the stomach lining is inhibited by these drugs. How does it differ from the COX-2 enzyme responsible for inflammation?
Prior to their phaseout in the 1980s, chemicals containing lead were commonly added to gasoline as anti-knocking agents. A 1.805 g sample of one such additive containing only lead, carbon, and hydrogen was burned in an oxygen rich environment.
A 4.20 g nugget of pure gold absorbed 299 J of heat. The initial temperature was 22.0°C. What was the final temperature.
Name the chemical family of elements that is absent from Mendeleev's table. 2) Which 4 elements were missing from mendeleev's periodic table? atomic masses: 45, 68, 70, 180
What atomic or hybrid orbitals make up the sigma bond between I and I in triiodide ion, I3-?. What is the approximate I-I-I bond angle?
what is the molarity of HCl in a solution prepaired by dissolving 18.25 gm HCl in 200 gm ethanol, if the density of solution is 0.86 gm per mm
what mass of sucrose should be combined with 501 g of water to make a solution with an osmotic pressure of 8.85 atm at 305 K? (assume density of solution is equal to the density of the solvent).
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