Plz me i will give u brainlest plz me which waste is produced by a fuel cell? a. gasoline vapors b. water c. hydrogen d. catalyst

18. use the activity series to predict whether the following synthesis reaction will occur. write the chemical equations for the reaction if it's predicted to occur. (s) + o2(g) -> *note: it is possible.*

Using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 pb+2(aq) + 2cl -(aq). if the value of ksp was determined to be only 1.2 x 10-2: too much solid has dissolved. additional precipitate is forming. the solution is unsaturated. the ions are now combining to reduce their concentrations.

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland