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What are two examples of alternative energy sources? What are two examples of renewable energy sources? Which two renewable energy sources depend on the weather?
how many grams of boric acid boh3 should be used to make 2l of 0.05m solution? what kind of flask would be used to
if the freezing point of pure toluene is -95.15 oc and its freezing point depression constant is -8.38 ocmolal what is
Vitamin K is involved in the blood clotting mechanism. When 0.500 g is dissolved in 10.0 g of camphor, the freezing point is lowered by 4.43 °C. Calculate the molecular weight of vitamin K.
A typical frequency used by GSM cell phones is 611.0 MHz. What is the wavelength of this signal
Calculate the pH of a buffer solution that is 0.200 M HC2H3O2 and 0.100 M in NaC2H3O2. Calculate the pH of the buffer that reults from mixing
Question- The enthalpy of neutralization of HCL with NaOH is -55.8 kJ/mol when very dilute solutions are mixed, but is -58.2 kJ/mol when 2M solutions are mixed. The reaction is
Which of the following isotopes is more likely to decay via positron emission rather than electron emission.
nitrous oxide n2o is oxidized byoxygeno2 to produce nitrogen dioxideno2.if 6.0 mol n2o reacts with 8.0 mol o2 toproduce
gasoline is composed of hydrocarbons. which additive ethanol or mtbe is more compatible similar with gasoline? why? gas
Explain how many grams of NaCl are necessary to precipitate most of the Ag+ ions from 2.50 x 102mL of 0.0113 M AgNO3 solution. State the net ionic equation for the reaction.
I was wondering why Salicylamide has a higher RF value than Acetylsalicylic acid considering Salicylamide has a very polar Amide group whereas Acetylsalicylic acid has a carboxylic acid group which are less polar than amides.
a. Is there sufficient evidence to conclude that the mean airline take off deviation is not zero at the 0.05 level of significance? b. Suppose the executive took a sample of 100 take off deviations and found the same sample mean and standard devi..
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