What reaction has the following general formula:
 $C_xH_y\ +\ O_2\ ->CO_{2\ }+\ H_2O$  

What is the general reaction scheme for a combustion  reaction?

What is the general reaction scheme for a combination reaction?

What is the general reaction scheme for a double replacement reaction?

What type of reaction is the following:
 $BaCl_2+2KI\ ->\ 2KCl\ +\ BaI_2$  

What type of reaction is the following:
 $2KI\ ->\ 2K\ +\ I_2$  

What type of reaction is the following:
 $C_{11}H_{24}+17O_2->\ 11CO_2\ +\ 12H_2O$  

What type of reaction is the following:
 $2NaHCO_3->\ Na_2CO_3+CO_2+H_2O$  

What type of reaction is the following:
 $Zn\ +\ 2HCl\ ->\ ZnCl_2+H_2$