第28页 - 创新优化学案九年级化学沪教版

$\ \text {2H}_2\ \text {O}_2\xlongequal[\ \ \ \ \ \ ]{\ \text {MnO}_2}2\ \text {H}_2\ \text {O}+\ \text {O}_2↑$

$\ \text {CaCO}_3+2\ \text {HCl}\xlongequal[\ \ \ \ \ \ ]{\ \ \ \ \ \ }\ \text {CaCl}_2+\ \text {H}_2\ \text {O}+\ \text {CO}_2↑$

$\ \text {2KMnO}_4\xlongequal[\ \ \ \ \ \ ]{△}\ \text {K}_2\ \text {MnO}_4+\ \text {MnO}_2+\ \text {O}_2↑$

$\mathrm{NH_4HCO_3\xlongequal[]{△}NH_3↑+H_2O+CO_2↑} $

$2\ \text {Mg+O}_2\xlongequal[]{点燃}\ \text {2MgO}$

$4\ \text {P+5O}_2\xlongequal[\ \ \ \ \ \ ]{点燃}2\ \text {P}_2\ \text {O}_5$

$\ \text {CO}_2+\ \text {Ca(OH)}_2\xlongequal[\ \ \ \ \ \ ]{\ \ \ \ \ \ }\ \text {CaCO}_3↓+\ \text {H}_2\ \text {O}$

$\ \text {H}_2\ \text {CO}_3\xlongequal[\ \ \ \ \ \ ]{}\ \text {H}_2\ \text {O}+\ \text {CO}_2↑$

$\ \text {2H}_2\ \text {O}\xlongequal[\ \ \ \ \ \ ]{通电}2\ \text {H}_2↑+\ \text {O}_2↑$

$\ \text {2H}_2+\ \text {O}_2\xlongequal[\ \ \ \ \ \ ]{点燃}2\ \text {H}_2\ \text {O}$

$\ \text {CO}_2+\ \text {H}_2\ \text {O}\xlongequal[]{}\ \text {H}_2\ \text {CO}_3$

$\ \text {C+O}_2\xlongequal[\ \ \ \ \ \ ]{点燃}\ \text {CO}_2$