1. Which one of the following is classified as a compound? a)H2(g) b)CO2(g) c) C12 (8) d) 12 (g)

It is important to wear proper protective equipment in lab even when not actively performing experiments because accidents can affect any researcher, even one not working on an experiment. select the best answer from the choices provided

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?