Zeta potential curves of Al2O3 and SiO₂ powders are given in the figure below. In order to prepare a stable slurry containing both Al2O3 and SiO2 particles, which pH would be the optimum? Zeta Potential (mV) 100 50 0 A1203 S102 10 12 14

In theory, sodium (Na) metal could be used in place of magnesium (Mg) in the preparation of titanium metal from TiO2. From Lecture 3-1, slide 4:  TiO2  +  2 Mg  -->  2 MgO  +  Ti Which of the following statements would be true if sodium was used instead of magnesium? Group of answer choices None of the other three statements are true. The reaction would not proceed with sodium because sodium oxide (analogous to the MgO product that forms) can't exist You would need 4 moles of Na because the sodium oxide product has a formula of Na2O. The reaction could not be done because sodium metal does not actually exist

Give the equation for the following: 50% w/w pKA Ka

Given TeO2, Cr2O3, Cl2O, and N2O5 which oxide is expected to form a hydroxide in water?       Given TeO2, Cr2O3, Cl2O, and N2O5 which oxide is expected to form a hydroxide in water? TeO2 Cl2O Cr2O3 N2O5

8) Why are some elements, such as Zn or Si, greatly enriched in deep waters of the North Pacific relative to the deep North Atlantic, while other elements, such as Al and Pb, are greatly depleted? (

14. Give the product side of the balanced chemical reaction for the following reaction: Mg (s) + FeCl3 (aq) → (Given that Mg is strong enough for this reaction to occur). (Caution, check phases!) Select one: a. MgCl2 (aq) + Fe (s) b. MgO (s) + CO2 (g) с. Мgз (РОд)2 (aq) + 3 H2О (1) + 3 СО2 (g) d. MgPOд (aq) + H2СОЗ (аq) e. none of these f. MgO (s) g. 3 MgCl2 (aq) + 2 Fe (s) h. Mg3 (PO4)2 (aq) + H20 (1) + CO2 (g) i. Mg3 (PO4)2 (s) + 3 H20 (1) + 3 CO2 (g) j. 2 MgO (s) CO

1) Can you use the aforementioned periodic trends (Oxidation number,Ionization energy,Electronic affinity and Electronegativity (Pauling and Allred-Rochow)) to predict the order of decreasing activity of the elements Ag, Al, Ca, Cu, Hg, Mg, Mn, Na, Ni, Pb, and Zn? By what or why not?2) How do you think the activity of an element should be related to its first potential ionization? Consult a table of ionization potential values ​ and predict an order decreasing reactivity of the previous elements3) How do you think the Pauling electronegativity of an element will be related to its exercise? Predict a decreasing order of reactivity of the above elements based on their Pauling electronegativities.

15. Balance the following chemical equations, and identify the reaction type of each Balanced equation: Reaction type: HgO + F2 - HØF2 + O2 КОН + MgCl2 - КСІ + Mg(OH)2 H3PO4 + Fe(ОН)2 — H2O + Fe3(PO4)2 NaCIO3 - NaCl + O2