Ch 6 And 7 Question Preview (ID: 39659)
Mix Of Questions From Both Chapters.
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Which of the following is not a principle of the atomic theory?
a) all atoms are made of subatomic particles
b) different elements have different properties because their atoms are different
c) all atoms of a particular element have the same properties
d) chemical processes are the result of the rearrangement, combination, or separation of atoms
Which idea states that tiny particles do not absorb or release energy in a smooth flow?
a) quark theory
b) quantum theory
c) Pauli exclusion principle
d) Heisenberg uncertainty principle
Which type of chemical formula shows the general arrangement of atoms in molecules?
a) intermolecular
b) empirical
c) molecular
d) structural
Which of the following is not one of the three groups that elements are divided into?
a) metals
b) semimetals
c) heavy metals
d) nonmetals
Which of the following metals is an alkali metal?
a) iodine
b) magnesium
c) sodium
d) calcium
Which of the following does not increase the rate at which a substance dissolves?
a) grinding
b) increasing temperature
c) increasing concentration
d) stirring
What property describes how strongly atoms of an element pull on electrons in a chemical bond?
a) electronegativity
b) ionic strength
c) solubility
d) concentration
What is the sum of the atomic masses of all the atoms in a molecule?
a) atomic mass
b) molecular mass
c) molar mass
d) units of mass
A substance with strong intermolecular forces typically has a(n) ? boiling point than a substance with weak intermolecular forces.
a) higher
b) lower
c) equal
d) 4-digit
What process occurs when an atomic nucleus breaks up or changes, emitting radiation?
a) nuclear decay
b) fusion
c) fission
d) radioactive decay
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