Which bibliography reference is listed correctly?

Find the mass in grams of hydrogen gas produced when 14.0 moles of hcl is added to an excess amount of magnesium.

George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.

An isotope undergoes radioactive decay. the new isotope that forms has an atomic number fhat is 2 less than the original isotopes. which kind of decay has occured and how do you know