For the solution description, select the correct characterization from the response list: [OH-] = 3.0 *10-6 M

A. an acid.

B. a base.

C. neutral.

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false

Two solids are mixed in a flask and stirred. after a few minutes, the flask becomes cold. which of the following best describes this reaction? a. an exothermic reaction b. a combustion reaction c. an endothermic reaction d. a decomposition reaction

Will mark as brainliest ! how many grams of iron metal do you expect to be produced when 245 grams of an 80.5 percent by mass iron (ii) nitrate solution react with excess aluminum metal? show all work needed to solve this problem!