What is the freezing point of the aqueous solution that created 5.0grams of Na2SO4 and was added to 75grams of water. The freezing constant of water is 1.86 degrees Celsius/m. Answer in two significant figures

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

Why are people not able to scuba dive in the deep part of the ocean

Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.