By how thick or slim it is
Products are copper+ aluminium chloride
reactants are aluminium+copper chloride
It is a covalent bond. Whenever a compound uses such suffixes like mono, di, tri, tetra, and so on, it is a covalent compound- thus having covalent bonds.
Answer: A wave
Explanation:
Because it’s the one that’s cause the new medium to go between the two media.
I completely understand your gripe. I also believe that you are the better option. It will only take time until she is yours, despite your parent's views. Keep it up