Chemistry, 09.10.2019 22:30, elielson1497
Consider a solution that is 2.0×10−2 m in fe2+ and 1.8×10−2 m in mg2+. (ksp for feco3 is 3.07×10−11 and ksp for mgco3 is 6.82×10−6.)
-what minimum concentration of k2co3 is required to cause the precipitation of the cation that precipitates first?
express your answer using two significant figures.
Answers: 3
Chemistry, 22.06.2019 07:50, carlosiscr7
Many reactions take place in aqueous solution. when potential reactants are mixed, a reaction will occur if there is some driving force that favors the formation of products. it is often convenient to categorize reactions in terms of these driving forces: precipitate formation, in which an insoluble solid is formed, weak electrolyte formation, as in a neutralization reaction involving water, or transfer of electrons, as in a redox reaction. these reactions can be represented by full molecular equations, which contain all species in the reaction mixture, or by net ionic equations, which show only the species that actually undergo a change. the latter does not contain the spectator ions, which do not undergo a net change or do not take part in the reaction. part a when the following two solutions are mixed: k2co3(aq)+fe(no3)3(aq) the mixture contains the ions listed below. sort these species into spectator ions and ions that react. drag the appropriate items to their respective bins. view available hint(s) spectator ions ions that react part b what is the correct net ionic equation, including all coefficients, charges, and phases, for the following set of reactants? assume that the contribution of protons from h2so4 is near 100 %.ba(oh)2(aq)+h2so4(aq)→ express your answer as a chemical equation. view available hint(s) nothing provide feedback
Answers: 3
Chemistry, 22.06.2019 08:00, stephstewart1209
Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.
Answers: 2
Consider a solution that is 2.0×10−2 m in fe2+ and 1.8×10−2 m in mg2+. (ksp for feco3 is 3.07×10−11...
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