Which Group is in the second column of the periodic table? A. Noble gases
B. Halogens
C. Alkali metals
D. Alkaline earth metals

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

The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as

Atoms contain subatomic particles called protons and neutrons. when these protons and neutrons spilt, a lot of energy is released