Al+NaOH+H2O=NaAlO2+H2
1.先找出不平的,如H,把单数的H配成双数Al+2NaOH+H2O=NaAlO2+H2
2.再把O配双数Al+2NaOH+2H2O=NaAlO2+H2
3.把O配平Al+2NaOH+2H2O=2NaAlO2+H2
4.把Al配平2Al+2NaOH+2H2O=2NaAlO2+H2
5把H配平2Al+2NaOH+2H2O=2NaAlO2+3H2
Al+NaOH+H2O=NaAlO2+H2
1.先找出不平的,如H,把单数的H配成双数Al+2NaOH+H2O=NaAlO2+H2
2.再把O配双数Al+2NaOH+2H2O=NaAlO2+H2
3.把O配平Al+2NaOH+2H2O=2NaAlO2+H2
4.把Al配平2Al+2NaOH+2H2O=2NaAlO2+H2
5把H配平2Al+2NaOH+2H2O=2NaAlO2+3H2