Question

Химия (казахский) 2 и 4

Answer 1

2. 2Ca + O₂ => 2CaO

2K + Cl₂ => 2KCl

Cu + Cl₂ => CuCl₂

4Na + O₂ => 2Na₂O

Ba + S => BaS

2Na + S => Na₂S

4. 2P + 5Cl₂ => 2PCl₅

2Na + S => Na₂S

2HCl + Mg => MgCl₂ + H₂↑

N₂ + 3H₂ => 2NH₃↑

2HgO => 2Hg + O₂↑