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Chemistry
Chemistry
Problem
Which of the following are used as fertilizers? a.
Ca
3
(
PO
4
)
2
\text{Ca}_3(\text{PO}_4)_2
Ca
3
(
PO
4
)
2
b.
Ca
(
H
2
PO
4
)
2
\text{Ca}(\text{H}_2\text{PO}_4)_2
Ca
(
H
2
PO
4
)
2
c.
CaNCN
\text{CaNCN}
CaNCN
d.
CaC
2
\text{CaC}_2
CaC
2
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