Stephanie kwolek invented kevlar, a very strong but light material. how did kwolek most likely invent kevlar?

Fossil fuels are organic compounds that are made from

Predict the relative bond lengths of the three carbon-oxygen bonds in the carbonate ion (co2−3). what would you expect the charge to be on each oxygen? match the words in the left column to the appropriate blanks in the sentences on the right. make certain each sentence is complete before submitting your answer.

When did stem cell research become known ? who discovered stem cell? what experiments or studies have been conducted so far?