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Write a net ionic equation for the reaction that occurs when cobalt(II) carbonate (s) and excess hydrochloric acid (aq) are combined.
In a pure sample of which of the following is there no hydrogen bonding? a. CH3NH2 b. (CH3)2NH c. (CH3)N d. none, pure samples of all these have hydrogen amines
Calculate the pH at the equivalence point in titrating 0.100M solutions of each of the following with 8.0×10-2 M NaOH.
Write the balanced net ionic equation for the following dissolution reaction: Zn(OH)2 in aqueous NaOH
A room contains 45 kg of air.How many kilowatt-hours of energy are necessary to heat the air in the house from 5 C to 29 C? The heat capacity of air is 1.03 J/ g C.
Write the cell notation for a voltaic cell with the following half-reactions.
1.00 g of NH4Cl (s) is completely decomposed by heating to 325 °C at 1.00 atm. What volume of gas will be produced? NH4Cl (s)= HCl(g) + NH3(g)
Using noble gas (n-1) dx representations write the outer electron configuration for the following ions
A student in a hurry decides to let the solvent travel only half way up the chromatographic paper in chromatogram 2. predict the effect of this procedural change on the resultion
calculate the heat absorbed or lost by the aqueous solution qaq in joules assuming that the specific heat capacity
A student wishes to establish experimentally the number of fungal particles in a fixed volume of air. He uses a liquid medium suitable for the growth of most fungi and exposes the liquid to air in a rectangular container of dimensions 15 cm × 15 c..
Reaction of 3-pentanol with potassium iodide in aqueous ethanol gave no reaction under several different reaction conditions. If one adds a catalytic amount of para-toluenesulfonic acid
Would the following procedural errors causes an increase, a decrease, or no change in your calculated molecular weight? Indicate clearly the reasoning in each case.
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