QUESTION 3 1 points Save Answer Reaction A is endothermic, but reaction B is exo
ID: 717574 • Letter: Q
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QUESTION 3 1 points Save Answer Reaction A is endothermic, but reaction B is exothermic. Rxn A: NH&CI(6) NHa (a)C (ag) Rxn B: NaOH (s) Na (a) OH (ag) Select every statement that MUST be true. For reaction A, the attraction between two ammonium ions is greater than the attraction between the ammonium ion and the chloride ion. For reaction B, the attraction between two sodium ions is greater than the attraction botween the sodium on and the hydroxide ion. between the ions themselves For reaction B, the interactions between water and the ions (Na* and OH) are weaker than the bonds For reaction A, the interactions between water and the ions (NH4"1 and Cr) are weaker than the bonds between the ions themselves. The interactions between the water molecules in reaction A are weaker than the interactions between the water molecules in reaction B.Explanation / Answer
Endothermic reaction is when the reaction absorbs energy or heat. In endothermic reactions more energy is absorbed when the bonds in the reactants are broken than is released when new bonds are formed in the products. This is because attraction forces in the reactants are stronger than those of products.
So, for reaction A : the interactions between water and the ions (NH4+ and Cl-) are weaker than the bonds between the ions themselves.
Exothermic reaction is one which releases energy or heat. In exothermic reactions more energy is released when the bonds are formed in the products than is used to break the bonds in the reactants.
For reaction B : the attraction between two sodium ions is greater than the attraction between the sodium ion and the hydroxide ion.
And,
The interactions between the water molecule in reaction A are weaker than the interactions between the water molecules in reaction B.
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