Water is a polar solvent and hexane (C6H14) is a nonpolar solvent. Which of the following correctly describes the solubility of the solute in the given solvent?

Which of the following descriptions of a subatomic particle is correct? 

Which of the following correctly describes the process of inspiration (air entering the lungs)? 

Which of the following elements is a nonmetal? 

For the following question(s), consider the following equation.              2Mg + O2  → 2MgO   How many grams of magnesium are needed to react with 16 g of O2 ? ( molar mass Mg = 24.00 g , O2 = 32.00 g)

The heat of fusion for water is 80. cal/g. How many calories of heat are released when 20.0 g of water at is frozen to ice? 

 A potato contains 20 g of carbohydrate. If carbohydrate has a caloric value of 4 kcal/g, how many kcal are obtained from the carbohydrate in the potato?

What is the answer, with the correct number of decimal places, for this problem?        4.392 g + 102.4 g + 2.51 g = 

Show that the triangle with vertices  A(4, -1), B(8, -6), and C(-1,-5)  is a right triangle by using the converse of the Pythagorean Theorem. Also, Find the area of the triangle.  

According to the Final Grade Calculation table, what percentage of the final grade is attributed to Online Assignment (Cengage WebAssign)?