Temperature is a measure of the average kinetic energy of the
particles in an object.
Answer:
A. SI units allow scientists to communicate around the world using the same
system of measurement.
Explanation:
I hope this help crystal lattic
Paraphrasing and summarizing
The law of conservation of mass applies to every reaction. In this case, you start with 1 Mg, 2 H, and 2CL and end up with the same five only their bonds have been rearranged, or in other words, they are joined up differently.