Question

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Answer 1

Answer: (all the numbers written after any symbol is a subscript)

1) SnO2 + 2H2 -----> Sn + 2H20

2) 3KOH + H3PO4 ----->

Answer 2

Answer: (all the numbers written after any symbol is a subscript, and all the added numbers are in brackets.)

1) SnO2 + (2)H2 -----> Sn + (2)H20

2) (3)KOH + H3PO4 -----> K3PO4 + (3)H2O

3) (2)KNO3 + H2CO3 ------> K2CO3 + (2)HNO3

4) Na3PO4 + (3)HCL ------> (3)NaCl + H3PO4

5) TiCl4 + (2)H2O ------> TiO2 + (4)HCL

6) C2H60 + (3)02 ------> (2)CO2 + (3)H2O

7) (2)Fe + (6)HC2H302 -----> (2)Fe(C2H302)3 + (3)H2

8) (4)HN3 + (5)O2 ------> (4)NO + (3)H2O

9) B2Br6 + (6)HNO3 ------> (2)B(NO3)3 + (6)HBr

10) (4)NH4OH + KAl(SO4)2 . 12H20 -----> Al(OH)3 + (2)(NH4)2SO4 + KOH + (12)H20.

Also this is riddhirajbhattacharjya from another account. I was trying to help last time and you reported me. It was only half answer because I had pressed add answer by mistake. I was still editing it to the full answer but you reported me.