Periodic table/what do the elements in group 2 have in common pls help a/they are all found in nature
b/they are all highly reactive nonmetals
c/they tend to form ions with a +2 electric charge
d/they tend to form ions with a -2 electric charge

How can you use chemical equations to predict the products of the reaction you can carry out?

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5