It would be /A/....because a chemical change is somthing that cant NOT be brought back to its areganal proproties.coal will never be able to be bavk the way it was!!
It classify living organisms by2characteristics
Reaction on positive electrode (cathode):
PbSO₄₍s₎ + 2H₂O₍l₎ → 2e⁻ + PbO₂₍s₎ + 4H⁺₍aq₎ + SO₄²⁻₍aq₎.
s - solid.
l - liquid.
aq - dissolve in water.
PbSO4 is converted to Pb at one electrode (anode) and to PbO₂ at the other (cathode). Lead battery can be recharged, during recharging, an external source of energy is used.
Answer: C
Explanation: This is because of a nice thing called guessing
