An area in the pacific ocean with frequent volcanic and earthquake activity is called the mid-atlantic ridge tsunami ring of fire epicenter

What are the requirements to be eligible for the saep scholarship?

If you constantly work its possible that you will become burned out at your job?

Raul has one solution that is 20% acid by volume and one solution that is 50% acid by volume. he plans to mix together some of each solution to create 30 milliliters of a solution that is 40% acid by volume. how many milliliters of the 20% acid solution should raul use to create the 40% acid solution? can someone explain this to me? i know that the answer is 10 milliliters, but i don't know how to get it.