Question

1. Fill in the blanks :
(a) A reaction in which two or more
substances combine to form a single
reaction.
substance is called a ..​

Answer 1

Answer:

Combination reaction

Explanation

In this reaction two or more elements combine to form a single compound

Example Rust where iron and oxygen combines to form rust

4Fe    +   3O2 ------> 2Fe2O3

Iron      oxygen          Rust

Another common example is salt when sodium reacts with chlorine it forms sodium chloride

2Na      +     Cl2  ------>   2Nacl

Sodium     Chlorine     sodium chloride