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According to the VSEPR theory, the electrostatic repulsion between electron pairs surrounding an atom causes?
a) an electron sea to form
b) positive ions to form
c) these pairs to be separated
d) light to reflect.
Calculate the change in enthalpy of this reaction. Specific heat of the solution = 4.184 J/(g oC) State your answer in kJ with 3 significant figures. Don't forget to enter the unit behind the numerical answer. The molecular weight of KOH is 56.2 g..
barium hydroxide solution PH = 10.5 is needed. How many grams of Barium hydroxide are needed
A solution composed of 20.00 g C2H5OH in 60.00 g CCl4 has a density of 1.280 g/mL. Calculate the molarity of C2H5OH in the solution.
Can relative amounts of the components of a mixture vary? Can the relative amounts of the components of a compound vary
petit discovered the empirical rule that the specific heat times the atomic weight of many solid elements is a constant: Using this rule, calculate the specific heat of copper and platinum.
if 120.9 ml of water is shaken with a gas at 0.860 atm it will dissolve 0.00286 g of the gas. estimate the henrys law
zinc hydroxide is insoluble in water but dissolves when nitric acid solution is added
Gaseous HBr has an absorption band centered at about 2645 cm-1 consisting of a series of lines approximately equally spaced with an interval of 16.9cm-1.
Determine the oxidation number for the indicated element in each of the following substances.
Given that the density of aluminum is 2.70g/cm^3, What maximum length of aluminum lil can be made from 1.10 kg of aluminum?
a sample of propane, contains 17.7 moles of carbon atoms. How many total moles of atoms does the sample contain.
Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to make 9.00 102 mL of solution and then titrate the solution with 0.128 M NaOH.
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