Ch. 2 Test Question Preview (ID: 55147)
Chem.
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Which atoms make up water?
a) CO2
b) O2
c) NaCl
d) H2O
What is the simplest version of an element?
a) electron
b) atom
c) proton
d) nutron
Solutions that have a pH less than 7 are
a) Basic
b) Polar
c) Acidic
d) Made of Water
What are the 3 subatomic particles?
a) Proton, Ion, Electron
b) Proton, Neutron, Atom
c) Proton, Neutron, Electron
d) Atomic, Neutron, Electron
Water molecules are polar,where the oxygen is slightly ____ and the hydrogens are slightly ____
a) positive,negative
b) negative, neutral
c) negative; positive
d) positive,neutral
A ______________ bond occurs when atoms TRANSFER electrons.
a) Hydrogen
b) Covalent
c) Ionic
d)
Solutions with a pH greater than 7 are ____________
a) Basic
b) Acidic
c) Polar
d) Neutral
What are atoms of the SAME element w/ the same # of protons and a DIFFERENT number of neutrons?
a) Ion
b) Isotope
c) Polar
d) Neutral
Water’s _________ allows it to dissolve compounds such as table salt.
a) Negitivity
b) Positive
c) Polarity
d) Neutrality
A ______________ bond occurs when atoms SHARE electrons.
a) Covalent
b) Ionic
c) Hydrogen
d) Polar
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