USE LETTERS FOR ANSWERS, NO NEED TO EXPLAIN a) Substitute symbols and formulas for words.
b) Predict the products. If no reaction occurs, write “NR” after the --> sign. c) Include abbreviations for the physical state.
d) Write out and balance the equation.

6. Mercury is poured into an aqueous solution of zinc nitrate.

7. Solutions of potassium iodide and lead (II) nitrate are mixed. The resulting lead compound is a precipitate.

thank you! :)

Ok:

Explanation:

6a)

b) NR

c)

d) Welp, no reaction so i don't know.

7a)

b)

c) All are aqeuous except for PbI2 which is solid

d)

Check if that is ok or if my work has any issues :).

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"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence,   the electronegativity (or the ability to attract electrons) is lessened."