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(Solved): 1) Write and Balance the reaction and calculate the number of atoms of Al obtained from the reaction ...



1) Write and Balance the reaction and calculate the number of atoms of Al obtained from the reaction of 10 g of calcium metal with aqueous aluminum nitrate. Assume more than enough.

2) The percent composition of a compound was found to be 65.4% C, 5.49% H and the rest, O. What is its empirical Formula? what is the molecular formula of the compound if its molar mass is 110.1? 3)

You have obtained a water-soluble ionic compound with the general formula X2(YZ4)3 where Y and Z are both nonmetals. answer the questions below and identify the ionic compound and ind its percent composition by mass

a) out of five polyatomic anions we learned about in chapter 5, which two match the formula YZ4? Write their formulas with charges

b) Identify nonmetal z

c) Based on the subscripts in the formula of th ionic compound, write the charges of the metal cation X and the polyatomic anion YZ4.

d) Which of the two polyatomic ions identified in (a) matches the above charge? write its formula

e) identify nonmetal Y:

f) Using the solubility table, identify the metal X that belongs to the main group of the elements, has the charge as in (c) and forms water soluble compound with the polyatomic anion found in (d).

g) Write the name and the formula of the ionic compound X2(YZ4)3:

h) Find the percent composition of the ionic compound



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