Acetone, a common solvent, has density 0.79g/cm3 at 20 degrees celcius. what is the volume of 85.1g of acetone at 20 degrees celcius? what is the mass of 125ml of acetone at 20degrees celcius? show your calculations.

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of

8. what happens to matter during a chemical reaction

Which of the following molecules is polar? c3h7oh c2h5cooh