For the electron configuration 1s2 the 1 represents?

What type of reaction is illustrated? 2c12o5 = 2cl2 + 502

Why is the vapor pressure of a warm lake higher than the vapor pressure of a cold lake? o a. warm water has a greater heat of vaporization. ob. warm water evaporates more quickly. cool water evaporates more quickly. od. cool water has a greater heat of vaporization.

List four observations that indicate that a chemical reaction may be taking place