Podcast
Questions and Answers
The reaction of HCIO (aq) and KOH (aq) is classified as a ______ reaction.
The reaction of HCIO (aq) and KOH (aq) is classified as a ______ reaction.
single-displacement
The molar mass of diborane (B₂H₆) is ______ g/mol.
The molar mass of diborane (B₂H₆) is ______ g/mol.
28
The molecular process that causes the dye and water to mix is called ______.
The molecular process that causes the dye and water to mix is called ______.
Diffusion
The symbol Pb represents the element ______.
The symbol Pb represents the element ______.
At constant temperature and pressure, the molar volume of an ideal gas is constant according to ______ law.
At constant temperature and pressure, the molar volume of an ideal gas is constant according to ______ law.
The number of significant figures in the number 68,080 is ______.
The number of significant figures in the number 68,080 is ______.
The quantity that is the ratio of mass to volume is known as ______.
The quantity that is the ratio of mass to volume is known as ______.
The partial pressure of hydrogen gas, after accounting for vapor pressure, is ______ torr.
The partial pressure of hydrogen gas, after accounting for vapor pressure, is ______ torr.
Among H₂, CH₄, and C₂H₄, the gas that would be expected to diffuse the fastest is ______.
Among H₂, CH₄, and C₂H₄, the gas that would be expected to diffuse the fastest is ______.
The compound CaCO₃ is known as ______.
The compound CaCO₃ is known as ______.
The volume of an ideal gas decreases until it becomes ______ at absolute zero (0 K).
The volume of an ideal gas decreases until it becomes ______ at absolute zero (0 K).
The compound HF is referred to as ______.
The compound HF is referred to as ______.
Gas molecules are ______ in volume compared to the volume of the gas as a whole, according to the kinetic theory of matter.
Gas molecules are ______ in volume compared to the volume of the gas as a whole, according to the kinetic theory of matter.
Browning meat is an example of a ______ change.
Browning meat is an example of a ______ change.
The negatively charged subatomic particles in an atom are called ______.
The negatively charged subatomic particles in an atom are called ______.
The volume of chlorine gas produced from 68.0 g of NaCl at 293 K and 1.00 atm is ______ liters.
The volume of chlorine gas produced from 68.0 g of NaCl at 293 K and 1.00 atm is ______ liters.
The smallest particles into which an element may be broken down without changing the identity of the element are called ______.
The smallest particles into which an element may be broken down without changing the identity of the element are called ______.
1 millimeter of mercury (1 mmHg) is equal to ______.
1 millimeter of mercury (1 mmHg) is equal to ______.
The number of protons in an atom is known as the ______.
The number of protons in an atom is known as the ______.
The standard atmosphere (atm) is equal to ______ torr.
The standard atmosphere (atm) is equal to ______ torr.
The atomic mass unit is defined relative to the isotope ______.
The atomic mass unit is defined relative to the isotope ______.
In the scientific method, thinking about nature to develop an idea about how something works involves ______.
In the scientific method, thinking about nature to develop an idea about how something works involves ______.
A microsecond is equal to ______ seconds.
A microsecond is equal to ______ seconds.
Standard temperature and pressure (STP) is defined as ______ K and 760 torr.
Standard temperature and pressure (STP) is defined as ______ K and 760 torr.
Flashcards
What is an atom?
What is an atom?
The smallest unit of an element that retains the chemical properties of that element.
What is atomic mass?
What is atomic mass?
A measure of the average mass of an atom of an element, taking into account the relative abundances of its isotopes.
What is atomic number?
What is atomic number?
The number of protons in the nucleus of an atom.
What is a barometer?
What is a barometer?
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What is a combination reaction?
What is a combination reaction?
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What is a decomposition reaction?
What is a decomposition reaction?
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What is a double-displacement reaction?
What is a double-displacement reaction?
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What is the scientific method?
What is the scientific method?
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Molar mass
Molar mass
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Avogadro's law
Avogadro's law
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Significant figures
Significant figures
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Partial pressure
Partial pressure
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Absolute zero
Absolute zero
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Kinetic theory of matter
Kinetic theory of matter
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Cation
Cation
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Chemical change
Chemical change
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Diffusion
Diffusion
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Density
Density
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What is the element with the symbol H?
What is the element with the symbol H?
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Name the compound with the formula CaCO₃.
Name the compound with the formula CaCO₃.
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What are the negatively charged subatomic particles called?
What are the negatively charged subatomic particles called?
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Boyle's Law
Boyle's Law
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Charles's Law
Charles's Law
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Ideal Gas Law
Ideal Gas Law
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Study Notes
Multiple Choice Questions (Chapters 1-5)
- Smallest particles of an element: Atoms
- 1 mmHg equivalent: 1 torr
- Number of protons in an atom: Atomic number
- Standard Atmosphere (atm) equivalent: 760 torr
- Atomic mass unit standard: Carbon-12
- Part of scientific method that involves thinking about how things work (nature): Hypothesizing
- Microsecond: 10-6 seconds
- Standard Temperature and Pressure (STP): 273.15 K and 760 torr
- Atoms in one mole: 6.022 x 1023
- 0 K equivalent: -273.15°C
Modified True/False Statements
- Instrument for measuring atmospheric pressure: Barometer
- Force per unit area: Pressure
- Solid state matter description (particles): Particles have energy for movement but not enough to overcome attraction for each other
- Closeness to actual value of measurement: Precision
- Central dense portion of an atom: Core
- Microscopic-Macroscopic link in chemistry: Avogadro's number
- Copper (II) chloride formula: CuCl₂
Matching Reactions with Categories
- (Matching was not requested; only response to question types is provided.)*
Multiple Choice Questions (Additional)
- Molar mass of diborane (B₂H₆): 27.65 g/mol
- Law related to constant molar volume of an ideal gas at constant temperature/pressure: Avogadro's law
- Significant figures in 68,080: 4
- Partial pressure of hydrogen if vapor pressure of water given: 740 torr
- Theoretical behavior of ideal gas at 0K (constant pressure): Volume decreases to zero
- Statement about gold(III) ion (positive charges): Gold (III) has three fewer electrons than a neutral gold atom.
- 1.5 meters in different units: 150 cm
- Example of chemical change: Browning meat
Additional Problems and Concepts
- Units of volume (from question 46): Liters or L
- Gases that diffuse fastest: H₂
- Element symbol for Silicon: Si
- Chemical formula of CaCO₃: Calcium Carbonate
- Chemical formula of HF: Hydrogen Fluoride
- Negatively charged subatomic particles: Electrons
Balancing Equations
- (Example matching of balancing equations is not possible; only response to question types is provided.)*
Additional Questions and Problems
- Pressure and volume relationship (Problem 46): Inversely proportional, PV = k (Boyle's Law)
- Relationship between temperature and volume (problem 47): Directly proportional (Charles's Law)
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