Which formula represents a substance that contains covalent bonds.

Certification programs are offered by all of the following except

The smokey mountains have over 2,100 miles of rushing mountain streams and rivers that flow through the park. in each mile lives a diverse community of native fish, amphibians, insects, and larvae, some of which are found only in the southern appalachians. park managers and scientific researchers test many factors such as fish populations, the watersheds and water tests to determine a) too many lizards are present b) the water quality of the stream c) rainwater is running into local streams d) if visitors to the park are overstaying their welcome

Nick wants to find out what the melting point of wax is. he has a block of wax, a graduated cylinder, a pan, a thermometer, and scales. which is the best procedure to follow for the experiment?