Answer:
metal ball that moves at high speed
Explanation:
I would say that you should wear a lab coat, safety goggles, and gloves
when the teacher says so - not everything in a lab is dangerous, so
there is no need to always wear these. But when the teacher says you
should - then you should.
The oceans store large amounts of energy
Your answer is going to be A, because it was shoved harder, it will go faster
Answer:
I think it would be:
NaCO3 (s)-->Na2O (s) + CO2 (g)