Answer:
Density is mass over volume.
Explanation:
Answer:
1st column group 1 - group2
second column Halogen group - zero group ( inert gases )
third column - very active metals , tend to lose one electron -less reactive than group one , tend to lose 2 electrons - very active nonmetals, tend to gain one electron - Nobel gases , do not gain or lose electrons
Explanation:
Energy for the plant. It’s a glucose
Explanation:
where are the chemical reactions and their properties to match ?????????