Answer:
water- chemical formula/ symbol of elements/
H2O H
O
Calcium Ca
Carbonate C
O
Phosphoric H3PO4
Acid
atomic mass/ no.of atoms/ molar mass/
1-atom of O. 18.01528g/ mol.
2atoms of H
Ca= 40.1g. 100.0868g/mol.
C=12.0g.
O=480g
H=1.00794g. 3atoms of H
P=30.9737611g. 1atom of P
O=15.9994g. 4atoms of O
% composition
water- H=11.19%
O=88.81%
Calcium- Ca=40%
Carbonate C=12%
O=48%
Phosphoric- H=3.086%
Acid. P=31.60%
O=65.307%
