The definition of a gem is "a precious stone, cut and polished for jewelry. They are all minerals. Some highly desirable gemstones may not be suitable for jewelry, yet be very collectible, like sphene. Others, like those in the corundum family, are prized for color and hardness, like emeralds and diamonds. Further, some common minerals, when polished, make beautiful pieces. With all that said, i woukd go with rarer.
They use information from other things that relate to that topic and then use that to do their research
Energy of reactants is higher than the products , I am not sure through
The rate of a reaction with this rate law would increase by a factor of 4 if NO concentration were doubled.
Answer:
2
Explanation:
because hydrogen is a diatomic element, so it can't be just H
