((m+n)^2÷ m^2-n^2)+ (m^2+mn÷ n^2-mn)​

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate

There are approximately 15 milliliters (ml) in 1 tablespoon (tbsp). what expression can be used to find the approximate number of milliliters in 3 tbsp?

When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule