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Straighterline Chemistry Final
Questions and Correct Answers the
Latest Update and Recommended
Version
findings that are summarized based on a pattern or trend
✓ Law
tentative explanation for a set of observations
✓ Hypothesis
If a liquid contains 60% sugar and 40% water throughout its composition then what is it
called?
✓ Homogeneous mixture
does not have a uniform composition throughout
✓ Heterogeneous mixture
represents a physical change?
✓ Water, when heated, forms steam.
How many micrograms are in 65.3 kg?
✓ e. 6.53 × 1010 μg
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A smart phone has dimensions of 4.9 inches (height), 2.3 inches (width) and 8.0 millimeters
(depth). What is the volume of the smart phone in cubic centimeters? (1 in = 2.54 cm)
✓ 58 cm3
Given that 1 inch = 2.54 cm, 1.00 cm3 is equal to
✓ 0.0610 in3
What terms defines a mass which is exactly equal to 1/12 the mass of one carbon-12 atom?
✓ Atomic mass unit
How many neutrons are there in an atom of lead whose mass number is 208?
✓ 126
Which of these elements is chemically similar to magnesium?
✓ Calcium
C(graphite) and C(diamond) are examples of:
✓ allotropes of carbon.
The 80Br- ion has
✓ 35 protons, 45 neutrons, 46 electrons.
The formula for sodium sulfide is
✓ Na2S
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Which one of the following formulas of ionic compounds is the least likely to be correct?
✓ Ca2NO3
What is the name of ClO - ion?
✓ hypochlorite
Which of the following is a molecular formula for a compound with an empirical formula of
CH?
✓ C6H6
What is the energy in joules of a mole of photons associated with red light of wavelength
7.00 × 102 nm? (c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s; NA = 6.022 × 1023 /mole)
✓ 1.71 × 105 J
Which is the correct electron configuration for gold?
✓ [Xe]4f145d106s1
Use the Rydberg equation to calculate the frequency of a photon absorbed when the
hydrogen atom undergoes a transition from n1 = 2 to n2 = 4. (R = 1.096776 × 107 m-1; c =
3.00 × 108 m/s)
✓ 6.17 × 1014 s-1
A 6.0-gram champagne cork is shot out of an opened champagne bottle and traveled at a
speed of 65 km/hour. Calculate the de Broglie wavelength (in meters) of the cork.
|
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✓ 6.1 × 10-33 m
A(n) _________ is a point at which a standing wave has zero amplitude.
✓ node
Calculate the wavelength associated with a 20Ne+ ion moving at a velocity of 2.0 × 105
m/s. The atomic mass of Ne-20 is 19.992 amu. (1 amu = 1.66 × 10-24 g and h = 6.63 ×
10-34 J • s)
✓ 1.0 × 10-13 m
The Pauli exclusion principle states that no ____ electrons within an atom can have the same
____ quantum numbers.
✓ 2; 4
Emission spectra
✓ can be used to identify unknown atoms.
Which one of the following equations correctly represents the process relating to the ionization
energy of X?
✓ X(g) → X+(g) + e-
How does atomic radius change as you move across the periodic table?
✓ Atomic radius decreases moving from left to right across a period and increases from top
to bottom.
|
✓ Thank You for Choosing Us! ✓ Resources & Updates: [Testtrackers - Stuvia US]
✓ © 2024 TestTrackers ✓ Your Success is Our Mission!
✓ Customer Support: [+254707240657]
Straighterline Chemistry Final
Questions and Correct Answers the
Latest Update and Recommended
Version
findings that are summarized based on a pattern or trend
✓ Law
tentative explanation for a set of observations
✓ Hypothesis
If a liquid contains 60% sugar and 40% water throughout its composition then what is it
called?
✓ Homogeneous mixture
does not have a uniform composition throughout
✓ Heterogeneous mixture
represents a physical change?
✓ Water, when heated, forms steam.
How many micrograms are in 65.3 kg?
✓ e. 6.53 × 1010 μg
|
✓ Thank You for Choosing Us! ✓ Resources & Updates: [Testtrackers - Stuvia US]
✓ © 2024 TestTrackers ✓ Your Success is Our Mission!
✓ Customer Support: [+254707240657]
, TestTrackers: Unlock Your Exam Potential! | Quality Practice Materials | Boost Your Confidence Today!
A smart phone has dimensions of 4.9 inches (height), 2.3 inches (width) and 8.0 millimeters
(depth). What is the volume of the smart phone in cubic centimeters? (1 in = 2.54 cm)
✓ 58 cm3
Given that 1 inch = 2.54 cm, 1.00 cm3 is equal to
✓ 0.0610 in3
What terms defines a mass which is exactly equal to 1/12 the mass of one carbon-12 atom?
✓ Atomic mass unit
How many neutrons are there in an atom of lead whose mass number is 208?
✓ 126
Which of these elements is chemically similar to magnesium?
✓ Calcium
C(graphite) and C(diamond) are examples of:
✓ allotropes of carbon.
The 80Br- ion has
✓ 35 protons, 45 neutrons, 46 electrons.
The formula for sodium sulfide is
✓ Na2S
|
✓ Thank You for Choosing Us! ✓ Resources & Updates: [Testtrackers - Stuvia US]
✓ © 2024 TestTrackers ✓ Your Success is Our Mission!
✓ Customer Support: [+254707240657]
, TestTrackers: Unlock Your Exam Potential! | Quality Practice Materials | Boost Your Confidence Today!
Which one of the following formulas of ionic compounds is the least likely to be correct?
✓ Ca2NO3
What is the name of ClO - ion?
✓ hypochlorite
Which of the following is a molecular formula for a compound with an empirical formula of
CH?
✓ C6H6
What is the energy in joules of a mole of photons associated with red light of wavelength
7.00 × 102 nm? (c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s; NA = 6.022 × 1023 /mole)
✓ 1.71 × 105 J
Which is the correct electron configuration for gold?
✓ [Xe]4f145d106s1
Use the Rydberg equation to calculate the frequency of a photon absorbed when the
hydrogen atom undergoes a transition from n1 = 2 to n2 = 4. (R = 1.096776 × 107 m-1; c =
3.00 × 108 m/s)
✓ 6.17 × 1014 s-1
A 6.0-gram champagne cork is shot out of an opened champagne bottle and traveled at a
speed of 65 km/hour. Calculate the de Broglie wavelength (in meters) of the cork.
|
✓ Thank You for Choosing Us! ✓ Resources & Updates: [Testtrackers - Stuvia US]
✓ © 2024 TestTrackers ✓ Your Success is Our Mission!
✓ Customer Support: [+254707240657]
, TestTrackers: Unlock Your Exam Potential! | Quality Practice Materials | Boost Your Confidence Today!
✓ 6.1 × 10-33 m
A(n) _________ is a point at which a standing wave has zero amplitude.
✓ node
Calculate the wavelength associated with a 20Ne+ ion moving at a velocity of 2.0 × 105
m/s. The atomic mass of Ne-20 is 19.992 amu. (1 amu = 1.66 × 10-24 g and h = 6.63 ×
10-34 J • s)
✓ 1.0 × 10-13 m
The Pauli exclusion principle states that no ____ electrons within an atom can have the same
____ quantum numbers.
✓ 2; 4
Emission spectra
✓ can be used to identify unknown atoms.
Which one of the following equations correctly represents the process relating to the ionization
energy of X?
✓ X(g) → X+(g) + e-
How does atomic radius change as you move across the periodic table?
✓ Atomic radius decreases moving from left to right across a period and increases from top
to bottom.
|
✓ Thank You for Choosing Us! ✓ Resources & Updates: [Testtrackers - Stuvia US]
✓ © 2024 TestTrackers ✓ Your Success is Our Mission!
✓ Customer Support: [+254707240657]
