Answer:
well you add them 2.50 + 5.50 = 7.00 thats what it equal
6 second???
Explanation:
Im so sorry if thats wrong!!!!
2
C
Here's an example of displacement reaction:
2 Al (s) + 3 CuSO4 (aq) -> 3 Cu (s) + Al2(SO4)3 (aq)
note that aluminium and copper are elements,
copper II sulphate and aluminium sulphate are compound
