CHEM 00350 Copper Mountain College Chemistry Quiz Questions Please show all work AND label as numbered. 1. When hydrotelluric acid is added into a solutio

CHEM 00350 Copper Mountain College Chemistry Quiz Questions Please show all work AND label as numbered.

1. When hydrotelluric acid is added into a solution of antimony (III) nitrate, a black precipitate of antimony (III) telluride is formed. First, write an unbalanced equation for this double displacement reaction and then balance it.

3. Write the correct chemical formula for the following compounds, and identify as Type I, II, or III:
A. Pentaboron pentahydride

B. Magnesium phosphate

C. Manganese (IV) peroxide

D. Platinum (I) hydrogen carbonate

4. 19,9924 AMU is the mass of one of the three isotopes of neon equaling 90.4838%. One of the other two isotopes has a masses of 20.9940 AMU and an abundance of 0.2696%. What is the average atomic mass of Neon?

6. Write the correct formulas and balance the equations:
A. Gallium plus perchloric acid yields gallium perchlorate plus water plus dichlorine pentoxide. (Note: the coefficient of the water is 9 and the coefficient of dichlorine pentoxide is 3.)

B. Aluminum hydroxide plus sulfuric acid yields aluminum sulfate plus water.

9. Write the correct chemical formulas and balance the following equations:
A. Potassium sulfate plus barium phosphate yields barium sulfate plus potassium phosphate.

B. Zinc selenide plus hydrogen cyanide yields zinc cyanide plus hydroselenic acid 5. The formula for the hexacyanocobaltate (II) ion is Co(CN)6 4. Write the
formulas for and name the compounds formed from the hexacyanocobaltate (II)
ion and cations formed from elements having Z numbers of, 19,49, and 56.
5. The formula for the hexacyanocobaltate (II) ion is Co(CN)6-4. Write th
formulas for and name the compounds formed from the hexacyanocobalt
ion and cations formed from elements having Z numbers of, 19,49, and 5
2. Identify the ion, the number of protons, the number of electrons, and give the
appropriate IUPAC name.
A. 42 ? +6
B. 34 ?-2
C. 51?-3
7. Find a set of coefficients that balance the following equation:
C32 H6407 + O2 —–> CO + H2CO3
8. Balance the following equation:
V + HNO3 —–> V(NO3)3 + N2 + H20
10. Sort the following atoms or ions into isoelectronic groups: N-3, Ar, F-1, Ne, P-
3. Ca+2, A1+3, Sr+2, Na+1,5-2, C1-1, 0-2, K+1, Mg+2
5. The formula for the hexacyanocobaltate (II) ion is Co(CN)6 4. Write the
formulas for and name the compounds formed from the hexacyanocobaltate (II)
ion and cations formed from elements having Z numbers of, 19,49, and 56.

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