2.200 mL of a solution containing 0.4 M Copper (II) Sulphate (CuSO4) is mixed with a 300 mL solution of 0.5 M Sodium Hydroxide (NaOH). The precipitate is then collected. Determine the theoretical mass of the precipitate.

1) describe the physical layout of the ocean floor ? 2) explain how the dumbo octopus swims differently than other octopus species and why this would be an advantage in the aphonic zone . 3) why are the types of organisms that live at each underwater hot vent so dramatically different ?

What is the approximate mass of 25 cm3 of silver, if the density is 10.5 g/cm3? a. 0.42 g b. 2.4 g c. 42 g d. 260 g

What is the percent by mass of magnesium sulfate in mgso4.7h2o