CO2 NaCl
HCl
These may all be classified as
A)elements and compounds.
B)elements and molecules.
C)elements and pure substances.
D)compounds and pure substances.

Between 2014 and 2016, more than 25,000 children in flint, michigan, drank water that was contaminated with lead from lead pipes. during this time, the city claimed the water was safe to drink. which of these actions could the city have taken to ensure that the drinking water was free from lead?

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged

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