You think that you have isolated ibuprofen in the lab. since you don't totally trust your own laboratory techniques, you want to prove to yourself that you have ibuprofen before you ingest it. using only melting point techniques, explain how you can prove that you actually have ibuprofen.

Interview notes mike is 50 and made $36,000 in wages in 2017. he is single and pays all the cost of keeping up his home. mike's daughter, brittany, lived with mike all year. brittany's son, hayden, was born in november 2017. hayden lived in mike's home since birth. brittany is 25, single, and had $1,500 in wages in 2017. she is not disabled. mike provides more than half of the support for both brittany and hayden. mike, brittany, and hayden are all u. s. citizens with valid social security numbers. 4. who can mike claim as a qualifying child(ren) for the earned income credit?