Which of the following reactions shows a chemical change producing a gas? A. 2AgNO3(aq) + CaBr2(aq) → 2AgBr(s) + Ca(NO3)2(aq)
B. 2CH2OH(1) + 302(g) → 2C02(g) + 4H20(1)
C. H2(g) + O2(g) → H20(1)
D. NaCl(s) + NaCl(aq)

Answer is to avoid experimental error

Your awser would be a acetone

Answer    "a salt" would be the best answerexplanationsalts can be defined as ionic compounds that are neither acids nor bases. nacl is an example of a salt, and its ionic.an enzyme is an organic compound which is covalently bonded, not ionically bonded.acids are generally held together by covalent bondsan element does not need any bonds to exist

Adialysis unit requires 78.5 l of water.the estimated digit is 5.