EDUTIMES
PUZZLE
CHEMISTRY PUZZLE 1
QUESTIONS
ACROSS
1. A negatively charged ion (5)
3. A compound that reacts with an acid to
form a salt (4)
4. An electrode at which oxidation occurs
in a cell (5)
5. The temperature above which a fer-
romagnetic material loses its ferromag-
netism (10)
7. A chemical element with atomic num-
ber 48 (7)
8. A common but non-SI unit of dipole
moment (5)
9. A chemical whose reaction rate with
another chemical increases because the
other substance undergoes another reac-
tion (8)
10. A colloid in which solid particles or liq-
uid droplets are suspended in a gas (7)
11. The formation of a chain structure by
bonding atoms of the same element (10)
13. A set of closely spaced energy levels
in an atom (4)
15. A compound that contains copper in
the +1 oxidation state (7)
16. A stable isotope of hydrogen which
has no neutrons (7)
DOWN
1. A measure of the amount of light ab-
sorbed by a sample (10)
2. A hydride in which hydrogen is a deu-
terium (8)
6. The removing of water from any sub-
stance (11)
12. A device that separates isotopes by
ionising the sample, accelerating the ions
in a strong electric field and then pass-
ing them through a strong magnetic field
(8)
14. Coating a metal with a protective film
by electrolysis (7)
12