what is double displacement reaction??
Answers
Explanation:
A double displacement reaction, also known as a double replacement reaction or metathesis, is a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products.
double decomposition, such reactions usually occur when 2 ionic compounds are mixed (usually in aqueous conditions) and the cations exchange the anions they associate with. For example, Pb(NO₃)₂ (aq) + 2KI (aq) → 2 KNO₃ (aq) + PbI₂ (s), in this case, a precipitate of lead (II) iodide is formed.
Answer:
A double-replacement reaction is a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds. The general form of a double-replacement (also called double-displacement) reaction is:
AB+CD→AD+BC
In this reaction, A and C are positively-charged cations, while B and D are negatively-charged anions. Double-replacement reactions generally occur between substances in aqueous solution. In order for a reaction to occur, one of the products is usually a solid precipitate, a gas, or a molecular compound such as water.
Explanation: