Question

In what kind of reaction is a compound formed from two reactants?

O
A. Combustion
O
O
B. Decomposition
C. Combination
O
D. Displacement
SUBMIT

Answer 1

Combination

Step-by-step explanation:

In combination reaction two or more elements combine to give one compound.

X + Y → XY

Combustion:

Combustion involve the burning of compounds. In combustion mostly hydrocarbons burn in the presence of oxygen and produce water, carbon dioxide and heat.

CH₄ + 2O₂ → CO₂ + 2H₂O + heat

Decomposition:

In decomposition reactions compounds are break into two or more products.

AB → A + B

Displacement:

In displacement reactions one element replace the other in compound.

AB + C → AC +B