Question

Ca+O2=? K+Cl2= ? Cu+Cl2=? Na+O2= ? Ba+S=? Na+S=? 2-астыңда тұрады дәреже секілді

Answer 1

Cu + Cl₂ = CuCl₂
2CaO + O₂ = 2CaO
2K + Cl₂ = 2KCl
2Na + O₂ = Na₂O₂
Ba + S = BaS
2Na + S + Na₂S

Answer 2

Ca + O2 = CaO K + Cl2 = 2KCl Cu + Cl2 = CuCl2 Na + O2 = Na2O Ba + S = BaS Na + S = Na2S

Explanation:

- When calcium (Ca) reacts with oxygen (O2), they combine to form calcium oxide (CaO) [[1]]. - When potassium (K) reacts with chlorine (Cl2), they combine to form potassium chloride (KCl) [[2]]. - When copper (Cu) reacts with chlorine (Cl2), they combine to form copper(II) chloride (CuCl2) [[3]]. - When sodium (Na) reacts with oxygen (O2), they combine to form sodium oxide (Na2O) [[4]]. - When barium (Ba) reacts with sulfur (S), they combine to form barium sulfide (BaS) [[5]]. - When sodium (Na) reacts with sulfur (S), they combine to form sodium sulfide (Na2S) [[6]].

Please note that the numbers in the chemical formulas represent the ratio of atoms in the compound. For example, Na2O means there are two sodium atoms for every one oxygen atom in sodium oxide.

I hope this helps! Let me know if you have any further questions.