Mistakes, 2nd row of rolling cabinet

Question 1

Hz (3)

Answer 1

(1) stands for Hertz
(2) the SI unit of frequency
(3) equal to 1 cycle per second

Question 2

stationary phase (2)

Answer 2

(1) often silica gel
(2) in TLC, this is the polar substance that the solute and solvent are tested in

Question 3

condensation tube (2)

Answer 3

(1) aka condenser
(2) the chilled chamber in which vapor condenses during the process of distillation

Question 4

cuvette (2)

Answer 4

(1) a flat-sided, optically clear container
(2) used for holding liquid samples in a spectrophotometer or other instrument

Question 5

vial (3)

Answer 5

(1) a small container, (2) typically cylindrical and made of glass (3) used especially for holding liquid medicines

Question 6

condenser

Answer 6

in processes involving heat transfer, this is a heat exchanger used to convert a gaseous substance into a liquid state through cooling

Question 7

isomer, chemistry

Answer 7

compounds with the same formula but different shapes, and different properties

Question 8

analyte

Answer 8

a substance that is the subject of chemical analysis

Question 9

isomer, physics

Answer 9

atomic nuclei with the same atomic number and mass number, but different “nucleic energies”

Question 10

checking chemical equations (2)

Answer 10

(1) they must be balanced in terms of mass/elements on each side, aka stoichiometry
(2) as well as in terms of charge, based on the oxidation number

Question 11

solubility of acids and bases (2)

Answer 11

(1) strong acids and bases will completely dissociate into ions in solution
(2) weak acids and bases will not

Question 12

physical change (2)

Answer 12

(1) a change in physical properties, not chemical composition (2) ie phase change, erosion, etc

Question 13

spectrophotometer

Answer 13

a machine that performs spectrophotometry

Question 14

lambda

Answer 14

stands for the wavelength of light