<span>1. CH4 + 2O2 – CO2 + 2H2O</span>
<span><span>2. 3CaCO3 + P2O5 – Ca3(PO4)2 + 3CO2(стрелка вверх)</span></span>
<span><span><span>3. FeCl3 + 3KOH – 3KCl + Fe(OH)3</span></span></span>
<span><span><span><span>4. Zn(NO3)2 – ZnO + 2NO2 + O2</span></span></span></span>
<span><span><span><span><span>5. Ca(OH)2 + H3PO – Ca(H2PO4)2 + H2O-вот здесь H3PO4 наверно?</span></span></span></span></span>
<span><span><span><span><span><span>6.2 Fe(OH)3 + 3H2SO4 – Fe2(SO4)3 + 6H2O</span></span></span></span></span></span>
<span><span><span><span><span><span><span>7. 2Ti2O3 + O2 – 4TiO2</span></span></span></span></span></span></span>
<span><span><span><span><span><span><span><span>8.2 Cu2O + O2 – 4CuO</span></span></span></span></span></span></span></span>
<span><span><span><span><span><span><span><span><span>9. 3NaOH + H3PO4 – Na3PO4 + 3H2O</span></span></span></span></span></span></span></span></span>
<span><span><span><span><span><span><span><span><span><span>10. 3CaCl2 + 2K3PO4 – Ca3(PO4)2 (стрелка вниз) + 6KCl</span></span></span></span></span></span></span></span></span></span>
<span><span><span><span><span><span><span><span><span><span><span>11. 2Al + 3H2SO4 – Al2(SO4)3 + 3H2</span></span></span></span></span></span></span></span></span></span></span>
<span><span><span><span><span><span><span><span><span><span><span><span>12.3 BaCl2 + Cr2(SO4)3 – 3BaSO4 (стрелка вниз) + 2CrCl3</span></span></span></span></span></span></span></span></span></span></span></span>