Biology: The Dynamics of Life, North Carolina Edition

Section 1: Atoms and Their Interactions

Atoms and Their Interactions

1
Substances such as lemon and tomato, with a pH __________, are considered acidic.
A)equal to 14
B)equal to 0
C)below 7
D)above 7
2
__________ results when a multiple substances are combined, with each substance keeping its individual properties.
A)An atom
B)A mixture
C)An ion
D)A solution
3
Which of these symbols represents copper?
A)Ca
B)Co
C)Cu
D)Cl
4
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078675642/181858/ch6_0_a.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (23.0K)</a>
According to the table, which of these is NOT considered a trace element?
A)boron
B)iron
C)oxygen
D)cobalt
5
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078675642/181858/ch6_0_b.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (30.0K)</a>
Which element does this figure represent?
A)neon
B)carbon
C)sodium
D)hydrogen
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Notice before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.