Which two substances are covalent compounds?
(1) c6h12o6(s) and ki(s)
(2) c6h12o(s) and hcl(g)
(3) ki(s) and nacl(s)
(4) nacl(s) and hcl(g)

Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore

Which terms are used to identify pure substances

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