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is there a color change reaction between oxalic acid and potassium carbonate?
Jerry Belton
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What happens when potassium iodide is added to ammonium carbonate?
no reaction/no change
Why is it difficult to determine the enthalpy change of thermal decomposition of potassium hydrogencarbonate to potassium carbonate?
The reaction which forms potassium hydrogen carbonate from potassium carbonate, K2CO3 + H2O + CO2 --> KHCO3 is difficult to perform in a laboratory; the same goes for the decomposition. Hence instead of simply using a calorimeter or similar apparatus, it is necessary to use another reaction route and a Hess Cycle using two reactions such as: reaction A: K2CO3 + 2HCl --> 2KCL + H2O +CO2 reaction B: KHCO3 + 2HCl --> KCl + H2O +CO2 The enthalpy change of the decomposition of potassium hydrogen carbonate will be twice the enthalpy change for reaction B, minus the enthalpy change for reaction A.
Chemical reaction for potassium nitride?
It reacts with water to produce toxic Ammonia
Why can't potassium hydroxide be used to test for carbon dioxide?
it is because potassium hydroxide will react with carbon dioxide to form potassium carbonate and water. but potassium carbonate is soluble, so there will be no visible change to see if there is carbon dioxide emitted
Is the reaction between magnesium nitrate and potassium chromate chemical or physical what is the chemical equation for this reaction?
The reaction between magnesium nitrate and potassium chromate is a chemical change. 2KOH(aq) + Mg(NO3)2(aq) --> 2KNO2(aq) + Mg(OH)2(s)
Is Potassium chloride decomposes to potassium chloride and oxygen gas is a physical or chemical change?
Chemical
How calcium carbonate change into oxides?
The reaction is:CaCO3==heating=====>CaO + CO2
Is sodium and potassium react violently with water a chemical change?
Sodium and potassium reacting violently with water is a chemical reaction, causing a chemical change.
What is the reaction when potassium carbonate is put into water?
A strong electrolyte dissociates completely into ions in aqueous solution. When potassium nitrite, a strong electrolyte, is put into water the cations and anions are surrounded by water molecules and the solid dissolves.KNO2(s) K+(aq) + NO2-(aq)We represent this state by the symbol "(aq)" to indicate that the ions are in aqueous solution.
Why is the reaction between glycerol and potassium permanganate irreversible?
The reaction between glycerol and potassium permanganate is irreversible because it involves a complete change in the molecular structure of the reactants. Glycerol, an alcohol compound, is oxidized by potassium permanganate, resulting in the formation of different products, such as carbon dioxide, water, and manganese dioxide. Once these new products are formed, it is difficult to reverse the reaction and reform the original reactants.
Characteristics of reaction of lemon juice and potassium permanganate?
In this i think change of colour takes place
Do potassium iodide and water create chemical reaction?
No, only dissolving of KI but that is a physical change.
