Answers;
F3S2 Name: Iron Disulfide
Lead(II) nitrate formula: Pb(NO3)2
Silicon tetrafluoride formula: SiF4
<span>sudden increase of Nitrate and Phosphate in March to April that occurred, it causes the fish tank to produce algae</span>
Titanium has 22 protons and electrons. The symbol for Titanium is (Ti).