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Suppose you take a trip to a distant universe and find that the periodic table there is derived from an arrangement of quantum numbers different from the one on Earth. The rules in that universe are:
Write the electron configuration with the atomic number 8 in the periodic table?
When chlorine reacts with 2-methylpropane and replaces only one hydrogen with chlorine
a 1.00L buffer solution is 0.250 M in HF and 0.250 M in NaF. Calculate pH of the solution after the addition of 100.0mL of 1.00M HCl. Ka for HF is 3.5x10^-4
Determine the percent by mass of calcium carbonate in the sample
A compound of potassium had the following percentage composition: K 44.90%; H 0.5787%; P 17.78%. The rest was oxygen. Calculate the empirical formula of this compound
Using structural formula, how would you write the chemical reaction which explains how the product of the acidification reaction reacts with OH-. How would this explain the changes in solubility?
Given that the density of chloroform is 1.48 g/mL, and the molar mass is 119.38 g/mol, how many moles of chloroform did the student measure?
What are the equilibrium concentrations of each reactant and product? (All three substances are gases at 250 °C)
A chemist wants to make 5.5L of a 0.280M CaCl2 solution. What mass of CaCl2 (in g ) should the chemist use?
A specific brand of gourmet chocolate candy contains 7.00 g of dietary fat in each 22.7 g piece. How many kilograms of dietary fat are in a box containing 4.00 lb of candy?
If the diameter of a sodium atom is 3.14×10-8 cm, how many sodium atoms would fit along a line exactly 6.00 inch long?
Write a balanced equation for the diazonium salt 1-naphthol and aminobenzenesulfonic acid (para structure). Draw a possible structure
Write the balanced net ionic equation for the following dissolution reaction: Zn(OH)2 in aqueous NaOH
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