need chemical name, chemical formula, and in what common consumer product it\'s

Question

need chemical name, chemical formula, and in what common consumer product it's found

1. An insoluble group 2 metal salt with a Ksp of 4.96E-9 at 25 ?C

2. A triprotic inorganic acid containing an element from group 15 of the periodic table

3. A heptahydrate salt of the element whose nucleus contains 12 protons

4. An ionic compound with isoelectronic anions and cations; the anion is formed by the most electronegative element

5. A salt that contains four ions per formula unit, imparts a yellow color to a Bunsen flame in the so-called "flame test," and reacts with silver nitrate solution to give a precipitate that is soluble in both aqueous ammonia and nitric acid

6. A salt containing an oxyanion in which chlorine is in the +1 oxidation state

7. An inorganic compound containing an oxygen-oxygen single bond

8. A compound that would release a basic gas when it is heated with aqueous sodium hydroxide and would give a precipitate with a 1:1 ion ratio when added to aqueous barium chloride

9. A binary ionic compound formed between the element with the lowest first ionization potential in period 4 of the periodic table and the element with the most negative electron affinity in period 5

10. A hydrated salt containing a divalent transition-metal ion with six 3d electrons and the same anion as unknown 8

11. A nonpolar aromatic compound with a molar mass of 147.01 g/mol and the following percentage composition (by mass): 49.02% carbon, 2.73% hydrogen, and 48.23% chlorine

12. An organic acid whose pKa is 4.76 at 25 ?C

Explanation / Answer

1. An insoluble group 2 metal salt with a Ksp of 4.96E-9 at 25 ?C

gropu 2 metal --> Ba+2, Mg+2, Ca+2,

nearest value is Ksp of BaCO3

2. A triprotic inorganic acid containing an element from group 15 of the periodic table

group 15...

this is P, therefore, inorganic acid is H3PO4

3. A heptahydrate salt of the element whose nucleus contains 12 protons

hepta = 7 H2O

z = 12 protons

MgSO4*7H2O

4. An ionic compound with isoelectronic anions and cations; the anion is formed by the most electronegative element

most electronegative --> Fluorine

isoelectronic ions... then this must be the least isoelectronic material

LiF

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