Question

Drag the tiles to the boxes to form correct pairs. Match each chemical reaction with the type of reaction that best describes it. synthesis 2Al + 6HCl → 2AlCl3 + 3H2 decomposition Ca + Br2 → CaBr2 single displacement 4NH3 + 5O2 → 4NO + 6H2O double displacement 2NaCl → 2Na + Cl2 combustion FeS + 2HCl → FeCl2 + H2S

Answer 1

The process in which chemical reactant (atom, molecules) gets converted into the product with or without the help of catalyst is called a chemical reaction.

Explanation:

Decomposition Reaction: Here, the reactant breaks down into two or more smaller products in the presence of heat, light etc. The matching reaction is

$CaBr_{2}$ → $Ca +2Br$

Single Displacement Reaction: Here, one element is replaced by another. The matching reaction is

$2Al + 6HCl$ → $2AlCl_{3} + 3H_{2}$

Double Displacement Reaction: Here, both elements are replaced by one another in the compound. The matching reaction is

$FeS + 2HCl$ → $FeCl_{2} + H_{2}S$

Combustion: Here, the compound reacts with oxygen to form the oxide product. The correct matching reaction is

$4NH_{3} + 5O_{2}$ → $4NO + 6H_{2}O$