Combined gas law problem: a balloon is filled with 500.0 ml of helium at a temperature of 27 degrees celsius and 755 mmhg. as the balloon rises in the atmosphere, the pressure and temperature drop. what volume will it have when it reaches an altitude where the temperature is -33 degrees celsius and the pressure is 0.65 atm?

Working with si (metric) units for each of the following commonly used measurements, indicate its symbol. liter gram milliliter kilogram meter centigram milligram centimeter kilometer second millimeter milliseconds

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

14. many depressants reduce small muscle control, making it harder for a. you to steer b. your mind to consider complex problems c. the eye to scan, focus, or stay still d. the kidneys to filter alcohol out of the bloodstream