SAT Physics Conventions and Graphing - Answers Explained

SAT Physics Conventions and Graphing - Answers Explained

SAT Physics Conventions and Graphing - Answers Explained-57-1
SAT Physics Conventions and Graphing - Answers Explained-58-1
Location: Texas, USA

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SAT Chemistry Subject Test - Practice Test 4

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SAT Chemistry Subject Test - Practice Test 4Note: For all questions involving solutions and/or chemical equations, assume that the system is in water unless otherwise stated.
Reminder: You may not use a calculator on these tests.
The following symbols have the meanings listed unless otherwise noted.
H = enthalpy
M = molar
n = number of moles
P = pressure
R = molar gas constant
S = entropy
T = temperature
V = volume
atm = atmosphere
g = gram(s)
J = joules(s)
kJ = kilojoules
L = liter(s)
mL = milliliter(s)
mm = millimeter(s)
mol = mole(s)
V = volt(s)
 PART A
Directions: Every set of the given lettered choices below refers to the numbered statements or formulas immediately following it. Choose the one lettered choice that best fits each statement or formula and then fill in the corresponding oval on the answer sheet. Each choice may be used once, more than once, or not at all in each set.

Questions 1-3:
refer to the following graphs:

1. The graph that best shows the relationship of gas volume …
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SAT Physics Nuclear Reactions - Radioactive Decay

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SAT Physics Nuclear Reactions - Radioactive DecayRADIOACTIVE DECAY
Radioactive decay occurs when an unstable isotope spontaneously loses energy by emitting particles from its nucleus. The decay processes were named in their order of discovery by using the first three letters of the Greek alphabet: alpha (α), beta (β), and gamma (γ). After their initial discovery, it was determined that an alpha particle was in fact the nucleus of a helium atom , a beta particle was actually an electron, , and gamma radiation was not a particle at all. Instead, it is a high-frequency photon, . Elements that naturally decay are said to be radioactive. Radioactive substances have a critical imbalance between the number of protons and neutrons in the nucleus. As atoms become larger, more neutrons are needed to maintain stability. Uranium-235 has 92 protons and 143 neutrons. The three common forms of natural radioactivity—alpha, beta, and gamma radiation—are discussed below.

Alpha Decay
In an alpha decay, an…
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SAT Chemistry Subject Test - Practice Test 1

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SAT Chemistry Subject Test - Practice Test 1Note: For all questions involving solutions and/or chemical equations, assume that the system is in water unless otherwise stated.
Reminder: You may not use a calculator on these tests.
The following symbols have the meanings listed unless otherwise noted.
H = enthalpy
M = molar
N = number of moles
P = pressure
R = molar gas constant
S = entropy
T = temperature
V = volume
atm = atmosphere
g = gram(s)
J = joules(s)
kj = kilojoules
L = liter(s)
mL = milliliter(s)
mm = millimeter(s)
mol = mole(s)
V = volt(s)
PART A Directions: Every set of the given lettered choices below refers to the numbered statements or formulas immediately following it. Choose the one lettered choice that best fits each statement or formula and then fill in the corresponding oval on the answer sheet. Each choice may be used once, more than once, or not at all in each set.

Questions 1-6:
refer to the choices in the following table:


1. The most electronegative element
2. The eleme…
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