1.

Write the chemical formula and name the elements present in the following compounds: a. Sodium chloride b. Potassium hydroxide c. Carbon-di-oxide d. Calcium oxide e. Sulphur dioxide

Answer»
Chemical formulaElements present
a.Sodium chlorideNaClSodium (Na), Chlorine (Cl)
b.Potassium hydroxideKOHPotassium (K),
Oxygen (O),
Hydrogen (H)
c.Carbon -di-oxideCO2Carbon (C),
Oxygen (O2)
d.Calcium oxideCaOCalcium (C),
Oxygen (O2)
e.Sulphur dioxideSO2Sulphur (S),
Oxygen (O2)



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