Can the smallest particles which are atoms still be divided?

When urea dissolves in water, the beaker becomes cold. Which statement describes this process? A) The ΔHsolvation is endothemic but the overall ΔHsolution is exothermic. B) The ΔHsolvation is exothermic and the overall ΔHsolution is exothermic.

A sample of helium has a volume of 3 liters when the pressure is 500 kPa. What volume does the gas occupy at 300 kPa?

Match the organic compound with the correct use or application. a. Used as a tissue preservative b. Creates the sour taste of vinegar c. Used as fuel d. Consumed as beverage and also used as disinfectant

Which is the correct way to write 602,200,000,000,000,000,000,000 in scientific notation?

2. A transformer only works with which type of current? A direct 70% B split Sm 70% C alternating D magnetic

What pressure is exerted by 0.750 mol of a gas at 0 °C and a volume of 5 L? 2.1 atm 3.4 atm 4.98 atm 760 atm

8) What is the molarity (M) of an aqueous solution containing 22.5 g of sucrose (C12H22011) in 35.5 mL of solution? A) 3.52 M B) 1.85 x 10-2M C) 0.104 M D) 0.0657 M E) 1.85 M

D5W is a solution used as an intervenous fluid. It is 5.0% by mass solution of the dextrose (C6H12O6) in water. if the density of D5W is 1.029 g/ml. Calculate the molarity of the dextrose in the solution.

In the titration of sodium oxalate with potassium permanganate, pure sodium oxalate (Na2C2O4, MM = 133.9985 g/mol) is used to find an accurate Molarity of a potassium permanganate (KMnO4) solution. If 98.

Who is the first scientist that discovered DNA?