The correct answer for the question that is being presented above is this one: "2 Discoveries that are made through cell technology sometimes result in new regulations." Cell technology affect government through d<span>iscoveries that are made through cell technology sometimes result in new regulations.</span>
A. It has mass.
Air is matter, and can't be seen thus not all matter can be seen.
Any liquid or gaseous is matter (water, air, etc.)
Since it can be liquid or gaseous it doesn't have to maintain it's shape and size to be matter.
It sounds like you may be looking for Peridotite, which is a type of ultramafic igneous rock that contain olivine as their main mineral in combination with <span>pyroxenes and amphiboles. I hope this helps! </span>
They have the same mass as the mass of the reactants. evidence to back this up is the law of conservation of mass