Final Exam Review C: Question Preview (ID: 28029)

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Which sequence of coefficients is accurate for the following equation: __Ca + __H2O = __Ca(OH)2 + __H2
a) 1, 1, 1, 2
b) 1, 2, 1, 2
c) 1, 2, 1, 1
d) 2, 1, 1, 2

What is the atomic number of deuterium, an isotope of hydrogen?
a) 1
b) 2
c) 3
d) 4

The alkanes methane (CH4), ethane (C2H6), and propane (C3H8) are substances common to combustion reactions. They are examples of
a) elements
b) compounds
c) mixtures
d) hydrocarbons

Which of the following accurately represents a decomposition reaction?
a) A + B = AB
b) hydrocarbon + O2 = CO2 + H2O
c) ABCD = A + B + CD
d) A + BC = AC + B

How many valence electrons are there in an atom of nitrogen?
a) 2
b) 5
c) 7
d) 14

What is the overall charge of isotopes?
a) positive
b) negative
c) neutral
d) it depends on the number of neutrons

In which state of matter are the particles able to freely slide past one another
a) solid
b) liquid
c) gas
d) plasma

Which state of matter best describes substances like Bartholomew's oobleck and ketchup?
a) non-Newtonian fluid
b) solid
c) liquid
d) gas

During which phase transition in matter does particle arrangement become more orderly, attraction increase, particle spacing decrease, and particle movement decrease?
a) freezing / solidification
b) condensation
c) deposition
d) freezing/solidification, condensation, and deposition

Which of the following would NOT help to prevent or avoid the tragedy of the commons?
a) punishment of over-consumers of commons
b) increasing access to commons
c) conservation efforts
d) increasing dialogue between consumers of commons

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