How do i rank the four gases (air, exhaled air, gas produced from the decomposition of h2o2, gas from decomposition of nahco3) , in order of decreasing concentration of co2.

What’s the scientific notation for the number 6,840,000,000

Which piece of equipment would me most useful for measuring the volume of some water? a. pan balance b. graduated cylinder c. tweezers d. flask quick

24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm