Which of the following reactions shows a chemical change producing a solid?A.2CH3OH(l) + 3O2(g) 2CO2(g) + 4H2O(l)B.2AgNO3(aq) + CaBr2(aq) 2AgBr(s) + Ca(NO3)2(aq)C.NaCl(s) NaCl(aq)D.H2(g) + O2(g) H2O(l)SUBMITarrow_backPREVIOUS
Question
Which of the following reactions shows a chemical change producing a solid?A.2CH3OH(l) + 3O2(g) 2CO2(g) + 4H2O(l)B.2AgNO3(aq) + CaBr2(aq) 2AgBr(s) + Ca(NO3)2(aq)C.NaCl(s) NaCl(aq)D.H2(g) + O2(g) H2O(l)SUBMITarrow_backPREVIOUS
Solution
The reaction that shows a chemical change producing a solid is B. 2AgNO3(aq) + CaBr2(aq) 2AgBr(s) + Ca(NO3)2(aq).
This is because the product of the reaction, AgBr, is in a solid state (indicated by the (s) after the formula). This means that a solid is produced during this chemical change. The other reactions do not produce a solid.
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