What is the porcent of H in NH3

The temperature on mercury may drop to - 265 °F at night. what is this temp in degrees celsius?

Which process best describes part of scientific investigation

Suppose you blow up a ballon and then place it in a freezer. Later you find that the ballon has shrunk and has bits of ice in it. Explain.

Describe the motion of the gas particles.

You have an evacuated container of fixed volume and known mass and introduce a known mass of a gas sample. measuring the pressure at constant temperature over time, you are surprised to see it slowly dropping.

Which of the following changes occurs with the greatest increase in entropy?

A child sits on a partially filled balloon and decreases the volume by half. What happens to the pressure inside of the balloon?

Which phrases describe all the outer planets' motion? Check all that apply. no rotation fast rotation slow revolution opposite revolution north to south rotation

Rank the species (amide ion, ammonia, or ammonium ion) from the largest to the smallest H-N-HH-N-H bond angle? Rank from largest to smallest H-N-HH-N-H bond angle. To rank items as equivalent, overlap them.

What is the ratio of effusion rates of krypton and neon at the same temperature and pressure?