Chemical equations

What is chemical equation of

potassium + oxygen --> potassium oxide

• K + O --> KO

• K + O₂ --> KO

• K + O₂ --> K₂O

• 4K + O₂ -->2 K₂O

sodium + water --> sodium hydroxide + hydrogen

• 2Na + H₂O --> 2NaH + H

• 2Na + 2H₂O --> NaOH + H

• 2Na + 2H₂O --> 2NaOH + H₂

• 2Na + H₂O --> 2NaH + H₂

Nitrogen + hydrogen --> ammonia

• N₂ + 3H₂ --> 2NH₃

• N + H --> NH

• 2N + 6H --> 2NH₃

• N₂ + H₂ --> NH₃

carbon + oxygen --> carbon dioxide

• C₂ + 2O₂ --> 2CO₂

• C + O₂ --> CO₂

• C + 2O --> CO₂

• C₂ + 4O --> 2CO₂

magnesium + chlorine --> magnesium chloride

• Mg + Cl₂ --> MgCl₂

• 2Mg + Cl₂ --> 2MgCl

• Mg + Cl --> MgCl

• Mg₂ + Cl --> 2MgCl