This solid is ductile and conducts electricity

Embryos of different species look very similar, which shows that the organisms share a ancestor.

Question 5 match each term to its description. match term definition excess reactant a) reactant that can produce a lesser amount of the product limiting reactant b) reactant that can produce more of the product theoretical yield c) amount of product predicted to be produced by the given reactants

Hydrogen has three isotopes 1h, 2h, and 3h. what is the difference between these three isotopes?