Which type of chemical equation or reaction takes the form of AB+XY-->AY+XB A) Combustion B) Synthesis...

Which type of chemical equation or reaction takes the form of

AB+XY-->AY+XB

A) Combustion

B) Synthesis

C) Single Displacment

D) Double Displacment

Solutions

Expert Solution

Ans -double displacement

During double displacement, the cations and anions of two different compounds switch places.

Written using generic symbols, it is:

AB + XY ---> AY + XB

A and X are the cations (postively-charged ions) in this example, with B and Y being the anions (negatively-charged ions).

Here is another way to look at the above generic example:

a) the outside portions (the cation A and anion Y) combine to make a formula called AY.
b) The inside portions (the anion B and the cation X) switch order so that X (postively charged) goes first and B (negatively charged) goes second making a formula called XB.

Keep in mind that, when it comes to writing actual formulas, you MUST write chemically correct formulas. Please do not assume from the AY and XB examples that the product formulas will always be one-to-one in terms of positive and negative.

Some examples of actual reactions are:

KOH + H₂SO₄ ---> K₂SO₄ + H₂O
FeS + HCl ---> FeCl₂ + H₂S
NaCl + H₂SO₄ ---> Na₂SO₄ + HCl
AgNO₃ + NaCl ---> AgCl + NaNO₃

queen_honey_blossom answered 11 months ago

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