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Question- The following molecular equation represents the reaction that occurs when aqueous solutions of lead(II) nitrate and barium chloride are combined. Pb(NO3)2 (aq) + BaCl2 (aq) PbCl2 (s) + Ba(NO3)2 (aq)
Write the balanced net ionic equation for the reaction using (aq), (s) etc as needed
Provide your answer in scientific notation
question when a 2.00-g sample of kscn is dissolved in water in a calorimeter that has a total heat capacity of 1.717
Draw the crystal-field energy-level diagrams and show the placement of d electrons for the following: [CrF6]-3
A student is given a soluble sodium salt containing one of eight possible anions (negative ions): acetate, chloride, bromide, iodide, sulfide, sulfate, or phosphate. the student adds some BaCl2 solution to the salt solution.
A sample of H½O with a mass of 46.0 grams has a temperature of -58.0 C. How many joules of energy are necessary to melt 46.0 grams of ice? (Use 2.1 J/g.C for the specific heat of ice, and 334.4 J/g for the heat of fusion of water.)
The yield of 2-bromohexane is much higher when the reaction mixture is stirred than when it is not. Why is this
There are two common polymorphs of zinc sulfide: cubic and hexagonal. Based on the analysis of Madelung constants alone, predict which polymorph should be more stable.
How much heat is needed to vaporize 2.42 g of liquid oxygen if the molar heat of vaporization for oxygen is 1,629 cal/mole?
A piece of charcoal from a tree killed by the volcanic eruption that formed the crater in Crater Lake (in Oregon) gave 7.0 disintegrations of carbon-14 nuclei per minute per gram of total carbon.
what is the partial pressure of nitrogen in a container that contains 3.96mol of oxygen 7.49 mol of nitrogen and 1.19
A cell composed of a platinum indicator electrode and a silver-silver chloride reference electrode in a solution containing both Fe2 and Fe3 has a cell voltage of 0.738 V. If the silver-silver chloride electrode is replaced with a saturated calome..
From there, how would I find the moles of salicylic acid in aspirin sample (mol) and the mass of salicylic acid in aspirin sample (g), which should help me calculate the percent purity of aspirin and the percent yield of aspirin in sample. Thank y..
Question- Use the following given enthalpies to find the enthalpy of reaction for the unknown reaction. Given: Fe2O3(s) + 3 CO(g) --> 2 Fe(s) + 3 CO2(g) DeltaH= -26.7 kJ
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