Start with these atoms... Draw the Lewis structure for the starting atoms
Add hydrogen atoms to
satisfy the octet rule
How many H’s are needed?
Draw the
structural
formula for the molecule
Write the molecular formula for the molecule
2 carbon atoms bonded together
1 carbon atom and 1 oxygen atom
1 carbon atom and 1 nitrogen atom
1 carbon atom and 2 oxygen atoms
© 2004 Key Curriculum Press.

Different isotopes indicate that an element will have different numbers of

The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for δg, δh, and δs for the adsorption of water.

Why do lunar and solar eclipse not happen every month