I think B or D because an eye obviously doesn't have a lense, mirror..maybe sorry for not giving u straight forward response
Sn + 2HF ----> SnF₂ + H₂
119g 2×20g
1 mole Sn (119g) is required to react with 2 moles (40g) of HF.
:)
Answer:
I guess B They have a charge
This would be classified as a chemical change.