Acompound that is composed of only carbon and hydrogen contains 85.7% c and 14.3% h by mass. what is the empirical formula of the compound?

Energy is released during which phase changes? check all that apply. boiling condensing depositing freezing melting subliming

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?

Select all the correct answers.which compounds have the empirical formula ch20? (multiple answers)a.c2h4o2b.c3h603c.ch2o2d.c5h1005e.c6h1206