Edition, By Theodore E. Brown With All Chapter 1-
24/ Latest Version With Verified Answers
,chapter 1. introduction: matter, energy, and measurement --------------------------------------------- 3
chapter 2. atoms, molecules, and ions ----------------------------------------------------------------------- 70
chapter 3. chemical reactions and reaction stoichiometry -------------------------------------------- 132
chapter 4. reactions in aqueous solution ------------------------------------------------------------------ 186
chapter 5. thermochemistry ----------------------------------------------------------------------------------- 236
chapter 6. electronic structure of atoms ------------------------------------------------------------------- 284
chapter 7. periodic properties of the elements ----------------------------------------------------------- 333
chapter 8. basic concepts of chemical bonding ---------------------------------------------------------- 377
chapter 9. molecular geometry and bonding theories ------------------------------------------------- 416
chapter 10. gases------------------------------------------------------------------------------------------------- 464
chapter 11. liquids and intermolecular forces ------------------------------------------------------------ 515
chapter 12. solids and modern materials ------------------------------------------------------------------ 550
chapter 13. properties of solutions -------------------------------------------------------------------------- 568
chapter 14. chemical kinetics --------------------------------------------------------------------------------- 612
chapter 15. chemical equilibrium ---------------------------------------------------------------------------- 652
chapter 16. acid-base equilibria ------------------------------------------------------------------------------ 684
chapter 17. aqueous equilibria: buffers, titrations, and solubility ---------------------------------- 723
chapter 18. chemistry of the environment ---------------------------------------------------------------- 756
chapter 19. chemical thermodynamics --------------------------------------------------------------------- 787
chapter 20. electrochemistry ---------------------------------------------------------------------------------- 826
chapter 21. nuclear chemistry -------------------------------------------------------------------------------- 857
chapter 22. chemistry of the nonmetals ------------------------------------------------------------------- 901
chapter 23. transition metals and coordination chemistry-------------------------------------------- 944
chapter 24. the chemistry of life: organic and biological chemistry -------------------------------- 978
,chapter 1. introduction: matter, energy, and measurement
chemistry: the central science 15th edition, test bank
1.1 multiple-choice questions
1) what is the physical state in which matter has no specific shape but does have a
specific volume?
a) gas
b) solid
c) liquid
d) salts
e) ice
correct ans: c
liquids have a definite volume but take the shape of their container. solids have both
definite shape and volume, while gases have neither. therefore, the correct state is liquid.
diff: 1 page ref: sec. 1.2
2) the law of constant composition applies to ___.
a) solutions
b) heterogeneous mixtures
c) compounds
d) homogeneous mixtures
e) solids
correct ans: c
the law of constant composition (or definite proportions) states that a given compound
always contains its component elements in fixed proportions by mass. this law applies
only to compounds, not mixtures, since mixtures can have variable compositions.
diff: 1 page ref: sec. 1.2
, 3) a combination of sand, salt, and water is an example of a ___.
a) homogeneous mixture
b) heterogeneous mixture
c) compound
d) pure substance
e) solid
correct ans: b
a heterogeneous mixture consists of visibly different substances or phases. in a mixture of
sand, salt, and water, the components can be seen separately (sand settles, salt dissolves),
making it heterogeneous.
diff: 1 page ref: sec. 1.2
4) a small amount of salt dissolved in water is an example of a ___.
a) homogeneous mixture
b) heterogeneous mixture
c) compound
d) pure substance
e) solid
correct ans: a
when salt dissolves completely in water, the resulting solution has a uniform composition
throughout, meaning it is a homogeneous mixture (also called a solution).
diff: 1 page ref: sec. 1.2
5) which one of the following has the element name and symbol correctly matched?
a) p, potassium
b) c, copper
c) mg, manganese
d) ag, silver
e) sn, silicon