Question

hoàn thành phương trình hóa học và caan bằng

fe+ O2 --->..........

H2 + .....................--->H2O

H2O+Na2O------>................

P+O2---->.................

H2+............--->Cu+--->............

H2O+SO2--->.........

..............+...................--->Na2O

Zn+HCL--->...........................+...............

....................+.......................-->H3PO4

......................+......................--->SO2

Al+......................-->.............+H2

H2O+Ca---.............+.................

KCLO3--->...............+...............

Al+HCL--->................+................

KMNO4--->......+.......+.........

Fe+H2SO4--->..........+...........

......+........--->FeCL2+H2

H2O+Na--->.............+....................

Answer 1

hoàn thành phương trình hóa học và caan bằng

3Fe+ 2O2 --->.....Fe₃O₄.....

2H2 + ..........O₂...........--->2H2O

H2O+Na2O------>........2NaOH........

4P+5O2---->........2P₂O₅.........

H2+........CuO....--->Cu+.....H₂O......

H2O+SO2--->....H₂SO₃.....

......4Na........+.........O₂..........--->2Na2O

Zn+HCL--->..............ZnCl₂.............+......H₂.........

........P₂O₅............+........3H₂O...............-->2H3PO4

............S.........+..............O₂........--->SO2

2Al+.......6HCl...............-->.....2AlCl₃........+ 3H2

2H2O+Ca --->.......Ca(OH)₂......+.........H₂........

2KCLO3--->......2KCl.........+........3O₂.......

2Al+6HCL--->........2AlCl₃........+.......3H₂.........

2KMNO4--->..K₂MnO₄....+....MnO₂...+...O₂......

Fe+H2SO4--->....FeSO₄......+.....H₂......

...Fe...+...HCl.....--->FeCL2+H2

2H2O+2Na--->........2NaOH.....+.............H₂.......

Answer 2

3Fe+ 2O₂ --->Fe₃O₄

2H2 + O2 \(\underrightarrow{t^o}\) 2H2O

H2O + Na2O \(\rightarrow\) 2NaOH

4P+5O2\(\underrightarrow{t^o}\)2P2O5

H2+CuO\(\underrightarrow{t^o}\)Cu+H2O

H2O+SO2\(\rightarrow\)H2SO3

4Na+O2\(\underrightarrow{t^o}\)2Na2O

Zn+2HCl\(\rightarrow\)NaCl+H2

P2O5 +3 H2O\(\rightarrow\)2H3PO4

S+O2\(\underrightarrow{t^o}\)SO2

Al+HCl\(\rightarrow\)AlCl3+H2

2H2O+Ca\(\rightarrow\)Ca(OH)2+H2\(\uparrow\)

2KCLO3\(\underrightarrow{t^o}\) 2KCl + 3O2\(\uparrow\)

2Al+6HCl\(\rightarrow\)2AlCl3 + 3H2\(\uparrow\)

2KMNO4\(\underrightarrow{t^o}\)K2MnO4 + MnO2 + O2\(\uparrow\)

Fe+H2SO4\(\rightarrow\)FeSO4 + H2\(\uparrow\)

Fe + 2HCl\(\rightarrow\)FeCl2+H2\(\uparrow\)

2H2O+2Na\(\rightarrow\)2NaOH + H2\(\uparrow\)