Iwill give the functional purpose of the ozone layer is a. to increase the global temperature b. to protect the earth from harmful uv rays c. to decrease the concentration of greenhouse gases d. to allow the passage of electromagnetic waves into the atmosphere

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5