A scientific arguement does not a. begin with a question
b. have a claim that proposes an answer to this question
c. provide opinions without evidence
d. clearly explain how the evidence supports the claim

To present informationto make information easily available 

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

27. =3,500,000 x 4,000 = 14,000,000,000