1. Ca + --> CaO
2 Ca + --> 2 CaO
2. Na + -->
4 Na + --> 2
3. P + -->
4 P + 5 --> 2
4. + --> HCl
+ --> 2 HCl
5. + --> Fe +
2 + 3 --> 4 Fe + 3
6. --> +
2 --> + 2
7. S + -->
S + 2 -->
8. + C --> Cr +
2 + 3 C --> 2 Cr + 3
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1. Ca + --> CaO
2 Ca + --> 2 CaO
2. Na + -->
4 Na + --> 2
3. P + -->
4 P + 5 --> 2
4. + --> HCl
+ --> 2 HCl
5. + --> Fe +
2 + 3 --> 4 Fe + 3
6. --> +
2 --> + 2
7. S + -->
S + 2 -->
8. + C --> Cr +
2 + 3 C --> 2 Cr + 3