Agas cylinder contains exactly 15 moles of oxygen gas (O2). How many molecules of oxygen
are in the cylinder?

The ph of carrots are 5.0 how it is classified a. acidic b. basic c. indicator d. neutral

Select each correct answer. more than one answer may be correct. which of the following is a characteristic of unicellular organisms? they can possess tissues and organs. all of their functions are performed by a single cell. they are usually microscopic. each of their cells is specialized to perform a specific function.

Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?