ya'll need help, I had almost all of my answers (THAT WERE CORRECT) deleted by a user, "europa2433". I never got any warnings of what I did, fix your da. mn moderation for once

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering