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Calculate the enthalpy of reaction, delta H, for this reaction in KJ/mol. Is this reaction exothermic or endothermic?
What is the principal quantum number of the valence electrons in an atom lead? EXPLAIN how you got your answer.
calculate the work required to expand the cell surface. Assume the cell is surrounded by water and that T=310K.
a mixture of 0.0319 g hydrogen and 0.0178 mol oxygen in a closed container is sparked to initiate a reaction. how many
find out that how many mL of this suspension must be given to an infant with 21lb weight if the recommended dose =10 mg/kg body weight?
How many grams of sodium acetate do you need to dissolve in 1.00L of 1.00M acetic acid to produce a buffer with a pH of 4.59
Determine how many moles of the ANION are present in this resulting solution If 4 moles of the ionic compound get dissolved in this reaction?
Draw a structural formula of an alkene or alkenes (if more than one) that undergo acid-catalyzed hydration and without rearrangement give 1-methylcyclohexanol as the MAJOR product.
In a graph(Energy (kj/mol)) the first five ionization energies of an atom are IE1, IE2, IE3, IE4, and IE5. what is the element symbol and its complete electron configuration for
In a certain experiement, 4.6 g Al is reacted with excess oxygen and 6.8 g of product is obtained according to this reaction: 4 Al + 3 O2 --> 2 Al2O3 What is the theoretical yield for this reaction
What is the major purpose of doing distillations in organic chemistry. What is the secondary purpose
Three isotopes of argon occur in nature - 36Ar, 38Ar, 40Ar. Calculate the average atomic mass of argon to two decimal places, given the following relative atomic masses and the abundances of each of the isotopes: argon
What exactly is the difference between Group 1 elements and Group 2 elements? Select the answers below, there may be more than 1 answer to this question.
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