Name these substances 2Cu, O2,2CuO, 2KCl, 2NaCl, K2SO4, CaO, 2HCL, CaCL2, CaO, H2SO4, CaSO4

1) Cu – copper;

2) O2 – oxygen;

3) CuO – copper (II) oxide;

4) KCl – potassium chloride;

5) NaCl – sodium chloride;

6) K2SO4 – potassium sulfate;

7) CaO – calcium oxide (II);

8) HCl – hydrochloric acid;

9) CaCl2 – calcium chloride;

10) H2SO4 – sulfuric acid;

11) CaSO4 – calcium sulfate.



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