Reaction between Ni(NO₃)₂ (aq) + Na₂CO₃ (aq) will result in a precipitation reaction
Further explanation
There are two types of chemical reactions that may occur.
namely single-replacement reactions and double-replacement reactions.
Double-Replacement reactions. Happens if there is an ion exchange between two ion compounds in the reactant to form two new ion compounds in the product
To predict whether this reaction can occur or not is one of them, the precipitation reaction. A precipitation reaction occurs if two ionic compounds which are dissolved reacted to produce one of the products of the ion compound does not dissolve. Formation of these precipitating compounds that cause reactions can occur
Solubility Rules:
1. soluble compound
All compounds of Li +, Na +, K +, Rb +, Cs +, and NH4 +
All compounds of NO₃⁻ and C₂H₃O₂⁻
Compounds of Cl−, Br−, I− except Ag⁺, Hg₂²⁺, Pb²⁺
Compounds of SO₄²⁻ except Hg₂²⁺, Pb²⁺, Sr²⁺, Ba²⁺
2. insoluble compounds
Compounds of CO₃²⁻ and PO₄³⁻ except for Compounds of Li +, Na +, K +, Rb +, Cs +, and NH₄ +
Compounds of OH− except Compounds of Li +, Na +, K +, Rb +, Cs +, NH₄⁺, Sr²⁺, and Ba²⁺
We use the Solubility Rules to determine whether a precipitation reaction will occur or not
NH₄Br and NH₄I, have the same cation, so there will be no reaction between the two (Double-Replacement reactions occur if there is an ion exchange between two ion compounds in the reactant)
The reaction of NaClO₄ (aq) + (NH₄)₂S (aq) ---> Na₂S (aq)+ NH₄ClO₄(aq)
Both products include soluble compounds
Ni(NO₃)₂ (aq) + Na₂CO₃ (aq) ---> NiCO₃(s)+ NaNO₃
(aq)
NiCO₃ is an insoluble compound
K₂SO₄ (aq) + Cu(NO₃)₂ (aq) ---> KNO₃ + CuSO₄
Both products include soluble compounds
Learn more
A double-replacement equation
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the reducing agent
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substance loses electrons in a chemical reaction
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