The total number of atoms of each element is not changed during a chemical reaction.

20 in the formula no3, what does the subscript 3 mean?

The number of living organisms in a particular area is

Matthew decided he wanted to hike up mount everest. on his way to the top, it began to snow and the temperature dropped to -10°f. matthew forgot to wear a heavy jacket so his body began to shiver beyond control. in this case, matthew's body shivering is the to a drop in temperature. * 0 points reflex stimuli responce environmental facto