Question

Which are combination reactions? (Can be more than one answer.)

A) 2 H20 ---> 2 H2 + 02
B) Mn+ PbO --> Pb + Mno
C) 2k + Br2 --> 2KBr
D) H2 + Br2 --> 2HBr

Answer 1

Look for any that are in the general form:\[\text{A} + \text{B} \longrightarrow \text{AB}\]