What is the def of chemical equation

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

In which environment would primary succession occur? a forest with a few remaining trees after a recent wildfire an area of exposed rock after a glacier melts away beach that is exposed to the air at low tide an abandoned baseball field in a small town

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !