Which of the following is considered binary? * HClO2, H2S, H3PO4, H3PO3

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

i think   the answer is c hope i'm right

fe 55.85 g/mol and h2o 18.02 g/mol.

answer: i dont know the answer but this might

explanation:

l