She must have used the torch as Sun, the tennis ball as Earth and the marble as Moon.
Answer:
The cation Fe3+ is formed when a. an atom of iron loses two electrons.
Explanation:
It forms <span>calcium phosphate and potassium nitrate
</span>2 K3PO4 + 3Ca(NO3)2 --> Ca3(PO4)2 + 6KNO3