Given the reaction at equilibrium:

NH4+ + OH– ↔ H2O + NH3

Which species is the proton donor in the forward reaction?

Name the intersection of plane bpq and plane cpq.

Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?

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!