The octet rule states that, in chemical compounds, atoms tend to have

a) the electron configuration of a halogen.

b) more protons than electrons.

c) more electrons than protons.

d) eight electrons in their principal energy level.

e) filled f sublevels.

Which statement is actually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

If a 20.0ml test tube measures 15.0cm, what is the length in meters?

Metric temperature is measured in celsius and fahrenheit. true or false