Crossword Puzzle: In the 2 × 2 box shown here, each answer must be correct four ways: horizontally, vertically, diagonally, and by itself. Instead of words, use symbols of elements. When the puzzle is complete, the four spaces will contain the over-lapping symbols of 10 elements. There is only one correct solution. Horizontal 1–2: two-letter symbol for a metal used in ancient times 3–4: two-letter symbol for a metal that burns in air and is found in Croup 5A Vertical 1–3: two-letter symbol for a metalloid 2–4: two-letter symbol for a metal used in U.S. coins Single squares: All one-letter symbols 1: a colorful non-metal 2: colorless, gaseous non-metal 3: an element that makes fireworks green 4: an element that has medicinal uses Diagonal 1-4: two-letter symbol for an element used in electronics 2-3: two-letter symbol for a metal used with Zr to make wires for superconducting magnets This puzzle first appeared in Chemical & Engineering News , p. 86, December 14, 1987 (submitted by S. J. Cyvin) and in Chem Matters , October 1988.
Crossword Puzzle: In the 2 × 2 box shown here, each answer must be correct four ways: horizontally, vertically, diagonally, and by itself. Instead of words, use symbols of elements. When the puzzle is complete, the four spaces will contain the over-lapping symbols of 10 elements. There is only one correct solution. Horizontal 1–2: two-letter symbol for a metal used in ancient times 3–4: two-letter symbol for a metal that burns in air and is found in Croup 5A Vertical 1–3: two-letter symbol for a metalloid 2–4: two-letter symbol for a metal used in U.S. coins Single squares: All one-letter symbols 1: a colorful non-metal 2: colorless, gaseous non-metal 3: an element that makes fireworks green 4: an element that has medicinal uses Diagonal 1-4: two-letter symbol for an element used in electronics 2-3: two-letter symbol for a metal used with Zr to make wires for superconducting magnets This puzzle first appeared in Chemical & Engineering News , p. 86, December 14, 1987 (submitted by S. J. Cyvin) and in Chem Matters , October 1988.
Solution Summary: The author explains that the table of crossword puzzle is to be completed by using the symbols of elements.
Crossword Puzzle: In the 2 × 2 box shown here, each answer must be correct four ways: horizontally, vertically, diagonally, and by itself. Instead of words, use symbols of elements. When the puzzle is complete, the four spaces will contain the over-lapping symbols of 10 elements. There is only one correct solution.
Horizontal
1–2: two-letter symbol for a metal used in ancient times
3–4: two-letter symbol for a metal that burns in air and is found in Croup 5A
Vertical
1–3: two-letter symbol for a metalloid
2–4: two-letter symbol for a metal used in U.S. coins
Single squares: All one-letter symbols
1: a colorful non-metal
2: colorless, gaseous non-metal
3: an element that makes fireworks green
4: an element that has medicinal uses
Diagonal
1-4: two-letter symbol for an element used in electronics
2-3: two-letter symbol for a metal used with Zr to make wires for superconducting magnets
This puzzle first appeared in Chemical & Engineering News, p. 86, December 14, 1987 (submitted by S. J. Cyvin) and in Chem Matters, October 1988.
Using Benzene as starting materid show
how each of the Following molecules Contel
Ve syntheswed
CHI
9.
b
-50311
с
CHY
503H
Ночто
d.
อ
•NOV
e
11-0-650
NO2
The molecule PYRIDINE,
6th electrons and is therefore aromatre
and is Assigned the Following structure
contering
Since aromatk moleculoy undergo electrophilic
anomatic substitution, Pyridine shodd undergo
The Following reaction
+ HNO3
12504
a. write all of the possible Mononitration Products
that could Result From this reaction
18. Bared upon the reaction mechanison determime
which of these producty would be the major
Product of the hegetion
a. Explain Why electron withdrawing groups
tend to be meta-Directors. Your answer Should
lyclude all apropriate. Resonance contributing
Structures
fo. Explain why -ll is an outho -tura
drccton even though chlorine has a very High
Electronegativity
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