30 ! which of these is a benefit of fuel cell cars? fuel cell cars are inexpensive. hydrogen fuel can be stored safely. fuel cell cars do not release greenhouse gases. hydrogen fuel can be distributed easily.

What is a metal replacement reaction

Which statement characterizes synthetic polymers? a. they come from animals and plants. b. they are found in nature. c. they are made in a lab. d. they are components of starch.

The following transition occurs at a molecular level for a substance. what transition corresponds to this change in microscopic structure? the carbon dioxide molecules on the left are in a regular, tightly packed pattern. after heating, it becomes much lower density. a. melting b. boiling c. sublimation d. freezing