The element hydrogen is made up of which kind(s) of atoms

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory

The biosphere of the earth is made up of what compound? organic or inorganic?

Astudent completes a titration by adding 12.0 milliliters of naoh(aq) of unknown concentration to 16.0 milliliters of 0.15 m hcl(aq). what is the molar concentration of the naoh(aq)? 1)5.0 m 2)0.20 m 3)0.11 m 4)1.1 m