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Compare and contrast visual and non-visual means of identifying a reaction and the importance of each
1 write a balanced net ionic equation for the reactioncalcium sulfite oxalic acid2 write a balanced equation and net
How many grams of liquid methanol (CH3OH) are needed to heat 425 mL of water from 18 oC to 43 oC by combustion with oxygen.
What is the concentration of Cu2+ in the following cell at 25 degrees C if the cell voltage is 0.955V?
According to the following reaction, how many grams of mercury will be formed upon the complete reaction of 25.6 grams of mercury(II) oxide
What volumes of .50 M HNO2 and .50 M NaNO2 must be mixed to prepare 1.00 L of a solution buffered at pH= 3.55? Calculate the pH of solution formed by mixing 100 mL of .100 M NaF and 100 mL of .025 M HCl.
Consider the following mechanism for the oxidation of bromide ions by hydrogen peroxide in aqueous acid solution. H+ + H2O2 ? H3O2+ (rapid equilibrium)
Draw resonance structures to show in which position 4-methylacetanilide will undergo nitration.
How many moles of HCl need to be added to 150 mL of 0.50 M NaZ to have a solution with a pH of 6.50? (Ka of HZ is 2.3e-5). Assume negligible volume of the HCl.
At 35°C and 1.30 atm, the density of a gaseous hydrocarbon is 2.262 g/L. The hydrocarbon could be
when the cations Na+ K+ Cs+ are combined with chloride ion in the gas phase to form ion pairs, which pair formation releases the greatest amount of energy? KCL or RbCl, or NaCl or CsCl.
A sample of oxygen is collected by water displacement at a temperature of 35C when the barometric pressure is 752 mm Hg. What is the partial pressure of the dry gas?
How many moles of S8 are needed to make 0.600 moles of SF4? S8 + 8 Cl2 = 8 SCl2 ; 3 SCl2 + 4 NaF = SF4 + S2Cl2 + 4 NaCl
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