A sample of three mixed gases is at 630.0 mmHg. If the partial pressure of CO2 is 124.0 mmHg and the partial pressure of N2 is 160.0 mmHg, what is the

partial pressure of O2? *

A-914.0 mmHg

B-346.0 mmHg

C-284.0 mmHg

D-46.0 mmHg

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.

What layer of the atmosphere is directly above the troposphere?