Ответ:
1. a) 3С+4Al=Al4C3
b) 4B+3O2=2B2O3
B) 2KClO3=2KCl+3O2
г) V2O5+5H2=2V+5H2O
д)2AgNO3+CaI2=Ca(NO3)2+2AgI
2. 2Mg+O2=2MgO
2AgCl=2Ag+Cl2
2Al+3CuO=Al2O3+3Cu
3NaOH+FeCl3=3NaCl+Fe(OH)3
3. 2P+5Cl2=2PCl5
m(Cl)=41.7г
m(p)=?
m(p)=41.7*62/239.5=10.8г
3. 2Н2+О2=2Н2О
m(H2)=20г
m(H2O)=?
m(H2O)=36*40/4=360г
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Answers & Comments
Ответ:
1. a) 3С+4Al=Al4C3
b) 4B+3O2=2B2O3
B) 2KClO3=2KCl+3O2
г) V2O5+5H2=2V+5H2O
д)2AgNO3+CaI2=Ca(NO3)2+2AgI
2. 2Mg+O2=2MgO
2AgCl=2Ag+Cl2
2Al+3CuO=Al2O3+3Cu
3NaOH+FeCl3=3NaCl+Fe(OH)3
3. 2P+5Cl2=2PCl5
m(Cl)=41.7г
m(p)=?
m(p)=41.7*62/239.5=10.8г
3. 2Н2+О2=2Н2О
m(H2)=20г
m(H2O)=?
m(H2O)=36*40/4=360г