HSiCl3+H2O=H10Si10O15+HCl

10 HSiCl3 + 15 H2O→H10Si10O15 + 30 HCl

Explanation:

Step 1: To make Si equal on both sides. put 10 in front of HSiCl3

10 HSiCl3 + H2O →H10Si10O15 + HCl

Step 2: By putting 30 in front of HCl, Cl can be balanced

10 HSiCl3 + H2O →H10Si10O15 + 30 HCl

Step 3: Now, balance O by putting 15 in front of H2O

10 HSiCl3 + 15 H2O→H10Si10O15 + 30 HCl

Hence the balanced equation is:

10 HSiCl3 + 15 H2O→H10Si10O15 + 30 HCl