Question

1) CaO + HCL= ? 2) Na(2)O + HCL=? то что в скобках это индекс. 3)CuO + H(2)SO(4)=? 4)CO(2) + NaH+=? Помагить пожалуйста) Химия не мой предмет.. Заранее спасио

Answer 1

1) CaO+2HCl= CaCl2+H2O

2) Na2O+2HCl=2NaCl + H2O

3) CuO+H2SO4= CuSO4+H2O

4) CO2+NaH=NaHCO3

Answer 2

1) CaO + HCl = CaCl2 + H2O - Calcium oxide (CaO) reacts with hydrochloric acid (HCl) to form calcium chloride (CaCl2) and water (H2O) [[1]].

2) Na2O + HCl = 2NaCl + H2O - Sodium oxide (Na2O) reacts with hydrochloric acid (HCl) to form sodium chloride (NaCl) and water (H2O) [[2]].

3) CuO + H2SO4 = CuSO4 + H2O - Copper(II) oxide (CuO) reacts with sulfuric acid (H2SO4) to form copper(II) sulfate (CuSO4) and water (H2O) [[3]].

4) CO2 + NaH = NaHCO3 - Carbon dioxide (CO2) reacts with sodium hydride (NaH) to form sodium bicarbonate (NaHCO3) [[4]].

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