A chlorine atom becomes stable by having 8 valence electrons by A losing one electron
B gaining one electron
C gaining 3 electrons
D losing seven electrons

The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?

Name the intersection of plane bpq and plane cpq.

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.