Why are hydrogen molecules called elements but water molecules are called compounds?

Elements and compounds are two types of

The part of a soil profile that is made up of partly weathered rock is the, bedrock subsoil, regolith, topsoil.

Have a region surrounding the central area called

How do ozone molecules form in the stratosphere?

How do you solve displacement

The Safe Drinking Water Act (SDWA) sets a limit for mercury-a toxin to the central nervous system-at 0.002 mg/L. Water suppliers must periodically test their water to ensure that mercury levels do not exceed 0.002 mg/L.

The smallest unit of an element is a blank

How many sodium atoms will create an ionic bond with sulfur?

Rank the elements from smallest to largest electronegativity negativity (smallest at top) 1. N 2. P 3. As 4. Sb

A bicyclist pedaling up a Hill. What type of energy potential or kinetic?