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1) Rank the following in order of decreasing electronegativity:
a) Br, F, Ga, N3-, Co
b) Sr, Rb, Mg, Li, C4+
2) How many water molecules are in 2.0 moles of water?
Choose the metal that is produced by electrolysis of its molten chloride salt. a) Li b) K c) Al d) Ca e) All of the above
From the first and second laws of thermodynamics, derive the equation for the criterion of spontaneity of a process, Gibbs free energy,
Write a reaction (a single reaction, an overall reaction, if you like, for the reaction of chlorine gas with methane to produce carbon tetrachloride.
If 37.5 mL of 0.274 M HCl solution is needed to neutralize an aqueous solution of calcium hydroxide, how many grams of calcium hydroxide must be in the solution prior to the initiation of the titration experiment
an intimate mixture of Fe2O3 and Al is used in solid fuel rocket .calculate the fuel per g and per ml of mixture. del Hal2o3 =399 kcal , del H fe2o3 =199 kcal density of Fe2O3 and AL are 5.2 g /ml and 2.7 g /ml respectively
What are the pH, pOH, hydroxide ion concentration , and hydronium ion concentration of a 0.014M strontium hydroxide solution
A quantity of CO gas occupies a volume of 0.64L at 1.0atm and 323K. The pressure of the gas is lowered and its temperature is raised until its volume is 4.6L. Find the density of CO under the new condition
A 330 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 626 mmHg. Calculate the moles of Ar present.
Explain a reaction in which A, B, and C react to form products is one-half order in A, zero order in B, and first order in C. Explain what is the overall order of the reaction
What is the maximum number of moles of NH4V3O8 that can be prepared starting from 2.5 moles each of N2 and H2. Assume all other reactants are not limiting reagents.
magnesium oxide decomposes into magnesium and oxygen. if 12.09 of magnesium oxide decomposes to form 7.29 of
In photosynthesis, plants form glucose and oxygen from carbon dioxide and water. calculate delta H, delta S and delta G of the reaction. Delta H is 2800.
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