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Identify the Type of Bonds For PoBr2 (Ionic, Polar, Nonpolar)
Determine the molarity M of a solution of 0.150 g of NaOH in 100 mL of water (Na = 23; O = 16; H = 1)
Calculate the number of miles of calcium chloride that can be obtained from 25g of limestone in the presence of excess hydrogen chloride
A plant cell with 5% solute and 95% water is placed into a solution of 10% solute and 90% water. The solution is _____ then, water will move _____.
250 mL of argon gas is held in a flexible vessel shown above. If the pressure changes to 12.0 atm, what is the new volume of the gas at 20 °C
Solve using combined gas law
250 mL of argon gas is held in a flexible vessel shown above. If the pressure changes to 12.0 atm, what is the new volume of the gas at 20 °C
If water on the earth’s surface seeps down underground as it is pulled by earth’s gravity, what process is occurring?

Mass of dish +magnesium oxide=14.70

Mass of dish=8.90

Calculate the mass of magnesium oxide used


Chloroform, CHCl₃, is prepared industrially by the reaction of methane (CH₄) with chlorine. How many grams of Cl2 are needed to produce 1.50 moles of chloroform?
Indicate the maximum number of electrons in an atom that can have as the following as part of their set of 4
quantum numbers. (Hint – Some may not be possible).
a. n = 3 _________ b. n = 2, l = 1 _________
c. n = 4, l = 3, ml = 2 _________
d. n = 6, l = 0, ml = 0, ms = +1⁄2 _________
e. n = 4, l = 2, ml = -3 _________
f. n = 8, l = 2 _________
g. n = 4, l = 2 _________
h. n = 2, l = 2 _________
i. n = 4, l = 3, ml = -1, ms = +1⁄2 ____
j. n = 3, l = 1, ml = +2 _________
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