What happens to light as it moves at an angle into a medium that has a higher index of refraction?
O. A. It speeds up, and the angle decreases.
B. It speeds up, and the angle increases.
c. It slows down, and the angle decreases.
O D. It slows down, and the angle increases.

Which type of stress results when two plates push against one another? a. compression b. tension c. force d. shear

In a laboratory experiment, a fermenting aqueous solution of glucose and yeast produces carbon dioxide gas and ethanol. the solution was heated by burning natural gas in a bunsen burner to distill the ethanol that formed in the flask. during the distillation, the ethanol evaporated and then condensed in the receiving flask. the flame of the burner was kept too close to the bottom of the flask and some of the glucose decomposed into a black carbon deposit on the inside of the flask. during this experiment the following changes occurred. which of these changes involved a physical change and not a chemical change? check all that apply. 1-condensation of ethanol 2-evaporation of ethanol 3- formation of carbon dioxide gas from glucose burning of natural gas 4-formation of ethanol from glucose by yeast 5-formation of a carbon deposit inside the flask

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .