CHEM 101-Straighterline Exam 1-Answered
77 K is colder than 4 K. - ANSWER-false
A bond between two or more atoms in which the electrons are shared. - ANSWER-
covalent bond
A bond between two or more atoms in which the electrons reside primarily in one atom.
- ANSWER-ionic bond
A bond between two or more metals in which the electrons do not belong to a particular
metal atom. - ANSWER-metallic bond
A column in the periodic table. Elements in the same column will have similar chemical
properties. - ANSWER-group
A combination of SI units. - ANSWER-derived units
A compound that dissociates completely into ions in an aqueous solution. - ANSWER-
strong electrolyte
A compound that only dissociates to a small extent in an aqueous solution, producing
very few ions. - ANSWER-weak electrolyte
A derived unit defined as mass/volume. - ANSWER-density
A measurement that is repeatable in an experimental setup, within an acceptable range
of error. - ANSWER-reliable measurements
A metric temperature unit system used throughout the world. - ANSWER-celsius
A negatively charged ion. - ANSWER-anion
A negatively charged particle that moves around the nucleus. - ANSWER-electron
A non-place-holding digit in any numerical measurement. - ANSWER-significant digit
A particle in the nucleus that has a positive charge. - ANSWER-proton
A physical combination of substances in which each substance keeps its own physical
and chemical properties. - ANSWER-mixture
A physical combination of substances of non-uniform composition. - ANSWER-
heterogeneous mixture
