4P+5O =2PO
PO +3HO = 2HPO
2HPO+ 3CaO = Ca(PO)+3HO
2HO+2Na = 2NaOH+ H
3NaOH + HPO = NaPO + 3HO
7. Si +O = SiO
SiO + 2NaOH = NaSiO + H2O
NaSiO + 2HCl = 2NaCl + HSiO
HSiO = SiO + HO
SiO+ LiO = LiSiO
8. 2 Ca + O = 2CaO
CaO + CO = CaCO
CaCO + 2HCl =CaCl + CO + HO
CaCl + 2NaOH = Ca(OH) +2NaCl
Ca(OH) + NaCO = CaCO + 2NaOH
9. NO + HO = 2HNO
2HNO+ CaO = Ca(NO) + HO
Ca(NO) + NaCO = CaCO + 2NaNO
CaCO + 2KNO = Ca(NO) + KCO
Ca(NO)+ Ba(OH) = Ca(OH) + Ba(NO)
10. Mg(OH) = MgO + HO
MgO + NaCO = MgCO + NaO
MgCO + 2HCl = MgCl + CO + HO
MgCl + 2KNO = Mg(NO) + 2KCl
3Mg(NO) + 2NaPO = Mg(PO) + 6NaNO
1) Do you like to go to the theatre?
1) Do you like to go to the theatre?2) Which kind of film do you prefer?
1) Do you like to go to the theatre?2) Which kind of film do you prefer?3) Do you like to go to the cinema with friends or alone?
1) Do you like to go to the theatre?2) Which kind of film do you prefer?3) Do you like to go to the cinema with friends or alone?4) Do you like to watch different comedies?
1) Do you like to go to the theatre?2) Which kind of film do you prefer?3) Do you like to go to the cinema with friends or alone?4) Do you like to watch different comedies?5) When is it better to go to the cinema?
1) Do you like to go to the theatre?2) Which kind of film do you prefer?3) Do you like to go to the cinema with friends or alone?4) Do you like to watch different comedies?5) When is it better to go to the cinema?6) Do your parents go with you to the cinema or you watch films at home on TV?
1) Do you like to go to the theatre?2) Which kind of film do you prefer?3) Do you like to go to the cinema with friends or alone?4) Do you like to watch different comedies?5) When is it better to go to the cinema?6) Do your parents go with you to the cinema or you watch films at home on TV?7) With whom you prefer to go to the theatre: with your friends or with your parents?
