Because subatomic particles ARE what make up atoms.
O is a blood donor
AB receiver
Answer:
Methods for determining or delivering precise volumes include volumetric pipets and pycnometers; less precise methods include burets, graduated cylinders, and graduated pipets. In this experiment, you will measure masses and volumes to determine density. Four different metal cylinders are investigated.
Explanation:
15. D is correct, exothermic reactions release heat
I am not sure about 16