What is a good, catchy slogan for the element fluorine in toothpaste? i'm having some trouble thinking of one, so any ideas ! (by the way i know it seems kind of weird but it's for a science project. )

Which of the following statements is not true? • a. covalent compounds have low melting and boiling points. • ob. covalent bonds between atoms of a compound are relatively weak compared to bonds between molecules. • c. covalent bonds occur between nonmetals. • d. covalent compounds are often gases or liquids.

What does the process of natural selection involve

Which best explains why an iceberg floats?