Which is the chemical formula for iron(ii) chloride tetrahydrate? a. fecl2•4h2o b. fecl3•6h2o c. fecl2•3h2o d. fecl3•4h2o

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.

Acompound has a molecular weight of 12.124 atomic mass units and the empirical formula c3h40. what is the molecular formula of the compound?

Which of the following describes a situation where competition between producers exists