Which of these statement is conclusive evidence that mixing sugar in water is a physical change? a). there is no change in color b).there is no precipitate formed. c).there is no gas given off. d).there is no molecular change.

Asample of freon gas has a volume of 2.23 liters, a pressure of 4.85 kpa, and a temperature of -1.36°c. calculate the volume at a pressure of 1.38 kpa and a temperature of 5.5°c. (show work)

The msds for glacial acetic acid says that it is a flammable liquid that can severely burn any human tissue it comes in contact with. it reacts with bases, various metals, and strong oxidizing agents. its vapors can form explosive mixtures with air.

Determine the mass of the object below with accuracy and to the correct degree of precision. a. 324.2 g b. 324 g c. 324.30 g d. 324.25 g