human
When does double displacement occur?
gpt
Double displacement reactions occur if one of the products is water, a gas, or insoluble.
Explanation: Double displacement reactions are characterized by the exchange of ions between two reactants, forming two new products. They typically occur when at least one of the products is a water molecule (H2O), a gas (like H2, O2, CO2, or N2), or an insoluble compound (a precipitate).