Q: 1.Draw the electronic formulae for the following covalent molecule :- H2
:- O2
:- N2
:- C2H2
:- CO2

Which piece of equipment would me most useful for measuring the volume of some water? a. pan balance b. graduated cylinder c. tweezers d. flask quick

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

If it is an isoelectronic series select true, if not select false. o2-, s2-, se2-, te2- na+, k+, rb+, cs+ n3-, p3-, as3-, sb3- ag, cd+, sn3+, sb4+ f-, cl-, br-, i- f-, ne, na+, mg2+ s2-, s, s6+