Reactivity of Group 1 and 2 elements increases as you go down the periodic table. So sodium is more reactive than lithium. Sodium will react with oxygen forming Na2O (sodium oxide). Lithium forms lithium oxide (Li2O).
3. B
4. A
5.A
6. A (i think)
Hope this helps
I think it is rarefaction. But im not sure
Answer:
equation number 3 is balanced.
hope it helps ☺️!
It would be an physical change ; if you melt butter the butter goes from a solid to a liquid so therefore the physical state is changed.
