<span>ZnS(s) + 2O2(g) mc011-1.jpg ZnSO4(s) CaO(s) + H2O(l) </span>
Answer:
137.2J
Explanation:
Ep= mgh
Given,
and we know, g = 9.81 N/kg
Ep= 2 × 9.81 × 7
Ep= 137.2J
The only correct statement on the list is choice-A./
Answer:
Chemical potential energy
Explanation:
which is used to for any form of energy.
Yes. Kinetic energy is a form of mechanical energy and friction will turn that kinetic energy into heat.
