Question

Помогите решить: а)K2CO3+HNO3б)Mg+HClв)Cu+H2SO4г)CuO+H2SO4д)HNO3+CO2е)Na2SO4+HClж)Ba(OH)2+H3PO4

Answer 1

К2Со3+НNO3= КNO3+НСо2 
Mg+HCl=HMg-реакция не имеет ришения  
Cu+H2SO4=реакция не имеет ришения
CuO+H2SO4=H2O+CuSO4
HNO2+CO2=H3NO2+CO2
Na2SO4+HCl=NaCl2+H3SO4
Ba(OH)2+H3PO4=BaPO4+H2О 
Не за что обрашайся 

Answer 2

a) K2CO3 + HNO3

When potassium carbonate (K2CO3) reacts with nitric acid (HNO3), a double displacement reaction occurs. The products of this reaction are potassium nitrate (KNO3) and carbonic acid (H2CO3). However, carbonic acid is unstable and decomposes into water (H2O) and carbon dioxide (CO2). Therefore, the balanced chemical equation for this reaction is:

K2CO3 + 2HNO3 → 2KNO3 + H2CO3 → 2KNO3 + H2O + CO2 [[1]]

b) Mg + HCl

When magnesium (Mg) reacts with hydrochloric acid (HCl), a single displacement reaction occurs. The products of this reaction are magnesium chloride (MgCl2) and hydrogen gas (H2). The balanced chemical equation for this reaction is:

Mg + 2HCl → MgCl2 + H2 [[2]]

c) Cu + H2SO4

When copper (Cu) reacts with sulfuric acid (H2SO4), a single displacement reaction occurs. The products of this reaction are copper(II) sulfate (CuSO4) and hydrogen gas (H2). The balanced chemical equation for this reaction is:

Cu + H2SO4 → CuSO4 + H2 [[3]]

d) CuO + H2SO4

When copper(II) oxide (CuO) reacts with sulfuric acid (H2SO4), a double displacement reaction occurs. The products of this reaction are copper(II) sulfate (CuSO4) and water (H2O). The balanced chemical equation for this reaction is:

CuO + H2SO4 → CuSO4 + H2O [[4]]

e) HNO3 + CO2

When nitric acid (HNO3) reacts with carbon dioxide (CO2), no reaction occurs. Nitric acid is a strong acid and carbon dioxide is a non-reactive gas. Therefore, they do not undergo a chemical reaction when combined.

f) Na2SO4 + HCl

When sodium sulfate (Na2SO4) reacts with hydrochloric acid (HCl), a double displacement reaction occurs. The products of this reaction are sodium chloride (NaCl) and sulfuric acid (H2SO4). The balanced chemical equation for this reaction is:

Na2SO4 + 2HCl → 2NaCl + H2SO4 [[5]]

g) Ba(OH)2 + H3PO4

When barium hydroxide (Ba(OH)2) reacts with phosphoric acid (H3PO4), a double displacement reaction occurs. The products of this reaction are barium phosphate (Ba3(PO4)2) and water (H2O). The balanced chemical equation for this reaction is:

3Ba(OH)2 + 2H3PO4 → Ba3(PO4)2 + 6H2O [[6]]

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