Answer:
open system
Explanation:
An open system is a system in which both energy and matter are exchanged with the surroundings.
Do you mean; " A blank is a substance that is made by combining two elements?" (I'm not sure if substances is the right term)
If so then the blank is a compound.
Answer:
The answer is actually CO4
Explanation:
prove me wrong
1.67377x10-27 kilogram(kg) or 1.67377x 10-24 gram(g)
Answer:
1..... nucleus
2......electron cloud
3.......protons
4........Neutrons
5..........electron
6............electrons
7...............Isotopes
8.....,...........ions
9....................charge
