An air sample contains 0.044% co2? if the total pressure is 750 mm hg. what is the partial pressure of co2? 2?

A__ is two or more substances that are together in the same place but are not chemically combined

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

Why are pipes bursting in the in extremely cold weather?