You didn't show a reaction. The way you would know is by studying/memorizing or looking up the SOLUBILITY RULES.
No. Not every double displacement reaction is a precipitation reaction. If we look at just one reaction, a neutralization reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH), we'll see this: HCl + NaOH => NaCl + H2O The end products are sodium chloride (NaCl, or table salt) and water (H2O). The salt is soluble in water so it will not precipitate out. There are many, many double displacement reactions, and the ones that will result in a precipitate will be ones where an end product is not soluble.
Yes,it can
When acid is added to the reaction mixture after refluxing, the amino group is protonated, making it soluble in water. When the Na2CO3 is added, the proton is removed and the benzocaine is no longer soluble. Thus it begins to precipitate out of solution when the reaction mixture is neutralized.
The reaction you describe in words is: KCl + AgCH3CO2 → AgCl + KCH3CO2 This type of reaction is known as a "double replacement reaction" aka "double displacement reaction" aka "metathesis reaction." A double replacement reaction is a chemical reaction where two reactant ionic compounds exchange ions to form two new products compounds with the same ions. In this case the ions are K+ , Cl-, Ag+ and C2H3O2−. Note that potassium chloride (KCl), silver acetate (AgCH3CO2) and potassium acetate (KCH3CO2) are all quite soluble in water. Silver chloride (AgCl) is not particularly soluble in water (520 μg/100 g at 50 °C) and will precipitate out as the reaction occurs.
The chemical reaction between Cu(NO3)2 and Na2SO4 is a double displacement reaction. The products of this reaction are CuSO4 (copper(II) sulfate) and NaNO3 (sodium nitrate).
Since it is a double displacement and the products of the reaction would be sodium nitrate and calcium carbonate, the precipitate would be calcium carbonate. This is because this reaction is a solubility based reaction, and sodium nitrate is a soluble compound (every metal is soluble in nitrate, and sodium dissolves in almost everything too). Whereas calcium carbonate is insoluble, and therefore will remain solid and form the precipitate.
Solid precipitate
No. Not every double displacement reaction is a precipitation reaction. If we look at just one reaction, a neutralization reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH), we'll see this: HCl + NaOH => NaCl + H2O The end products are sodium chloride (NaCl, or table salt) and water (H2O). The salt is soluble in water so it will not precipitate out. There are many, many double displacement reactions, and the ones that will result in a precipitate will be ones where an end product is not soluble.
Yes,it can
Yes, the reactants must be soluble.
A precipitate is the formation of a slightly soluble product as a result of a Chemical Reaction brought on by the mixing of two solutions. A precipitate is the formation of a slightly soluble product as a result of a Chemical Reaction brought on by the mixing of two solutions.
They are not soluble, therefore they do not precipitate or form a color....a.k.a....no reaction...
Q: Sodium nitrate + ammonium chloride ―――> ?NH4Cl (aq) + NaNO3 (aq) ―――> No ReactionIf this reaction were to occur, the products would be NaCl (s) + NH4NO3 (aq).However, in order for a double-displacement reaction (a reaction between two compounds) to occur, one of the products (the precipitate) must be insoluble in water. NaCl is common salt and NH4NO3 is also very soluble in H2O. Therefore, no reaction will occur. I hope this was helpful!
When acid is added to the reaction mixture after refluxing, the amino group is protonated, making it soluble in water. When the Na2CO3 is added, the proton is removed and the benzocaine is no longer soluble. Thus it begins to precipitate out of solution when the reaction mixture is neutralized.
There is no such thing as a soluble precipitate A precipitate a solid that is formed in a chemical reaction, therefor only a insoluble precipitate can occur, and the soluble would remain as a soluble solution. The difference between a soluble and insoluble precipitate is that a insoluble precipitate is incapable of dissolving in a liquid, and a solid is formed in the reaction, where as the soluble substance will dissolve in the liquid.
By definition, a precipitate is not water soluble. It precipitates out of solution from its constituent ions by way of a double-replacement reaction. Example: 3NaOH(aq) + FeCl3(aq) --> 3NaCl(aq) + Fe(OH)3(s) The iron(III) hydroxide is the precipitate.
CaCl2 (solubility 745g/l) NaOH (solubility 1090g/l) CaCl2 + 2NaOH > Ca(OH)2 + 2NaCl (Double displacement reaction) Ca(OH)2 (Solubility 1.7g/l) NaCl/Table salt (Solubility 359g/l) I'm assuming that you'll be left with Calcium Hydroxide as a precipitate because it's not soluble whereas all other chemicals involved are soluble you should get a White precipitate of Calcium precipitate (Hydroxides aren't very soluble generally unless paired with an alkali metal)