Sentences with phrase «certain chemical elements»

Certain chemical elements have more than one type of atom.

Not exact matches

Douching introduces unnecessary elements into the delicate pH balance of the V. Plus, certain chemical agents in a douche may upset the delicate tissues of the V, and make a mom's body feel a little upset at the unnecessary intrusion.

Thus, when talking about the chemical composition of planetary interiors, certain should be replaced by dubious, positive proof by vague suggestions, and, when talking about Earth's core, pure iron should be replaced by uncertain mixture of all the elements.

«Some imaging studies using mouse models of Alzheimer's disease had revealed the presence in these mice's brains of tiny, mysterious black dots that could signal the presence of iron, an element that shows up dark under MRI and, in certain chemical forms, can be highly reactive and inflammation - inducing,» Rutt said.