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It explains how the elements were initially formed and believed to have started the birth of the Universe.
It explains how the elements were initially formed and believed to have started the birth of the Universe.
Modern cosmology supposes that the Universe came from a "Big Bang" event about 13 billion years ago. Evidence for this is___.
Modern cosmology supposes that the Universe came from a "Big Bang" event about 13 billion years ago. Evidence for this is___.
Which of the following refers to the processes of producing light elements like Helium?
Which of the following refers to the processes of producing light elements like Helium?
Why is the Big Bang Theory the most accepted theory for how the universe was formed?
Why is the Big Bang Theory the most accepted theory for how the universe was formed?
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Which of the following has been used as evidence to support the universe is expanding from a historical beginning explosion?
Which of the following has been used as evidence to support the universe is expanding from a historical beginning explosion?
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What do the initial moments after the Big Bang have in common with the universe as it exists now?
What do the initial moments after the Big Bang have in common with the universe as it exists now?
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Which of the following describes stellar nucleosynthesis?
Which of the following describes stellar nucleosynthesis?
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It is the lightest element and the starting point of nuclear fusion reaction in stars.
It is the lightest element and the starting point of nuclear fusion reaction in stars.
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These are atoms of an element that have the same number of protons but have different number of neutrons.
These are atoms of an element that have the same number of protons but have different number of neutrons.
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In this cosmic stage, formation of elements heavier than iron occurred and it happened after a violent explosion.
In this cosmic stage, formation of elements heavier than iron occurred and it happened after a violent explosion.
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It is the building blocks of matter.
It is the building blocks of matter.
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The two Greek philosophers who first proposed the ideas of atom.
The two Greek philosophers who first proposed the ideas of atom.
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He proposed that there are only 4 elements in the Universe – air, fire, water and Earth.
He proposed that there are only 4 elements in the Universe – air, fire, water and Earth.
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The following statements are true about Aristotle's notion of elements EXCEPT one:
The following statements are true about Aristotle's notion of elements EXCEPT one:
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A pseudo-science which became basis for modern day chemistry.
A pseudo-science which became basis for modern day chemistry.
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Find the number of Proton of the following elements: (Items 16, 17, 18, 19, 20)
16.) Manganese (Mn)
17.) Potassium (K)
18) Arsenic (As)
19. Calcium (Ca)
20. Cobalt (Co)
Find the number of Proton of the following elements: (Items 16, 17, 18, 19, 20) 16.) Manganese (Mn) 17.) Potassium (K) 18) Arsenic (As) 19. Calcium (Ca) 20. Cobalt (Co)
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What subatomic particle determines an atom's identity?
What subatomic particle determines an atom's identity?
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In a neutral atom, the number of protons is ____ to the number of electrons.
In a neutral atom, the number of protons is ____ to the number of electrons.
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The following statements are TRUE about Dalton's Atomic Theory EXCEPT one:
The following statements are TRUE about Dalton's Atomic Theory EXCEPT one:
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What three sub-atomic particles make up an atom?
What three sub-atomic particles make up an atom?
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The region outside the nucleus where an electron can most probably be found is the
The region outside the nucleus where an electron can most probably be found is the
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Which particles are referred to as nucleons (subatomic particles located in the nucleus)?
Which particles are referred to as nucleons (subatomic particles located in the nucleus)?
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Which subatomic particle is negative?
Which subatomic particle is negative?
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What is a substance that cannot be broken down into simpler components?
What is a substance that cannot be broken down into simpler components?
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The atomic number of an element is the total number of which particles in the nucleus?
The atomic number of an element is the total number of which particles in the nucleus?
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The total number of protons and neutrons in the nucleus of an atom is its
The total number of protons and neutrons in the nucleus of an atom is its
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Which of the following statements in NOT true?
Which of the following statements in NOT true?
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Which of the following will be the solvent if a nonpolar substance dissolves in an unknown liquid?
Which of the following will be the solvent if a nonpolar substance dissolves in an unknown liquid?
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Which of the following is an example of non-polar molecule?
Which of the following is an example of non-polar molecule?
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Which of the following is a common structure of a non-polar molecule?
Which of the following is a common structure of a non-polar molecule?
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Which of the following is TRUE about boiling point of polar molecules?
Which of the following is TRUE about boiling point of polar molecules?
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Which of the following is TRUE about H2O?
Which of the following is TRUE about H2O?
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It is a quantity that describes the polarity of a bond in a molecule.
It is a quantity that describes the polarity of a bond in a molecule.
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Which of the following refers to the capacity of a liquid to be mixed with other liquids to form a homogeneous substance?
Which of the following refers to the capacity of a liquid to be mixed with other liquids to form a homogeneous substance?
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Which one of the following properties decreases once the strength of its intermolecular forces increases?
Which one of the following properties decreases once the strength of its intermolecular forces increases?
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Which of the following phase transitions shows a decrease in the intermolecular forces of attraction?
Which of the following phase transitions shows a decrease in the intermolecular forces of attraction?
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Illustrate the Lewis dot structures, name the shape of the molecule, and identify whether the following molecules are polar or nonpolar based on structure.
Illustrate the Lewis dot structures, name the shape of the molecule, and identify whether the following molecules are polar or nonpolar based on structure.
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Flashcards
Big Bang Theory
Big Bang Theory
The leading explanation of how the universe began, suggesting it started from a hot, dense state and expanded.
Cosmic Expansion Evidence
Cosmic Expansion Evidence
Observational data supporting the idea that the universe is expanding, such as the abundance of hydrogen and helium.
Stellar Nucleosynthesis
Stellar Nucleosynthesis
The process by which stars produce lighter elements like helium through nuclear fusion.
Nuclear Fusion
Nuclear Fusion
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Isotopes
Isotopes
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Stellar Explosion
Stellar Explosion
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Atomic Identity
Atomic Identity
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Dalton's Atomic Theory
Dalton's Atomic Theory
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Lewis Dot Structure
Lewis Dot Structure
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Dipole Moment
Dipole Moment
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Miscibility
Miscibility
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Nonpolar Molecule
Nonpolar Molecule
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Intermolecular Forces
Intermolecular Forces
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Atom
Atom
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Solvent
Solvent
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Protons
Protons
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Neutrons
Neutrons
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Electrons
Electrons
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Boiling Point
Boiling Point
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Phase Transition
Phase Transition
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Chemical Bond
Chemical Bond
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Valence Electrons
Valence Electrons
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Chemical Element
Chemical Element
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Chemical Reaction
Chemical Reaction
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Homogeneous Mixture
Homogeneous Mixture
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H2O Properties
H2O Properties
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Hydrogen Bond
Hydrogen Bond
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Study Notes
Multiple Choice Questions - Physical Science Midterm Exam
- Question 1: The Big Bang Theory explains the formation of elements in the universe.
- Question 2: Evidence for the Big Bang Theory includes the uniformity of hydrogen and helium, the cosmic background radiation, and Hubble expansion.
- Question 3: Nucleosynthesis is the process that produces light elements like Helium.
- Question 4: The Big Bang Theory is the most accepted model for universe formation because it's the simplest explanation supported by evidence.
- Question 5: Evidence for the expanding universe includes the shifting wavelengths of light from distant galaxies and leftover cosmic energy.
- Question 6: Initial moments after the Big Bang are similar to current universe expansion in terms of the universe began expanding and continues to expand.
- Question 7: Stellar nucleosynthesis is the process of element formation within stars.
- Question 8: Hydrogen is the lightest element and initiates nuclear fusion in stars.
- Question 9: Isotopes are atoms of the same element with different numbers of neutrons.
- Question 10: Elements heavier than iron form during stellar explosions.
- Question 11: Atoms are the basic building blocks of matter.
- Question 12: Democritus and Leucippus proposed the concept of the atom.
- Question 13: Aristotle proposed four elements: air, fire, water, and earth.
- Question 14: Aristotle's notion of elements did not include the sun as an element.
- Question 15: Alchemy is a pseudo-science that influenced modern chemistry.
- Question 16-20: Questions ask for the number of protons in specific chemical elements (Manganese, Potassium, Arsenic, Calcium, and Cobalt).
- Question 21: Protons determine an atom's identity.
- Question 22: In a neutral atom, the number of protons equals the number of electrons.
- Question 23: Dalton's atomic theory states elements are made of atoms, compounds are composed of different atoms, and atoms are neither created nor destroyed.
- Question 24: Atoms are made of protons, neutrons, and electrons.
- Question 25: The electron cloud is the region outside the nucleus where electrons are likely located.
- Question 26: Nucleons refer to protons and neutrons.
- Question 27: Electrons are negatively charged subatomic particles.
- Question 28: A chemical element cannot be broken down into simpler components.
- Question 29: The atomic number represents the number of protons in the nucleus.
- Question 30: The mass number is the total number of protons and neutrons.
- Question 31: Protons, electrons, and neutrons have specific roles and properties within atoms.
- Question 32: A non-polar substance is the solvent if it dissolves a nonpolar substance.
- Question 33: Examples of non-polar molecules include O3, N2, and CIBr3.
- Question 34: Common structures of non-polar molecules include linear and other shapes mentioned in the text.
- Question 35: Polar molecules generally have higher boiling points compared to their non-polar counterparts.
- Question 36: Water (H2O) is a polar molecule.
- Question 37: Dipole moment describes the polarity of a bond in a molecule.
- Question 38: Miscibility refers to the ability of a liquid to mix with another liquid.
- Question 39: Intermolecular forces decrease properties like viscosity, which are related to forces between molecules.
- Question 40: Phase transitions like liquid-to-gas or solid-to-gas reduce intermolecular forces.
Further Questions/Information (Page 2-4)
- Boiling Points of Molecules: Polar molecules generally have higher boiling points than nonpolar molecules due to stronger intermolecular forces.
- Lewis Dot Structures: Visual representations of electron arrangements in atoms and molecules.
- Molecular Shapes and Polarity: Exploring the shapes and polarity of different molecules based on Lewis dot structures.
- Atomic Properties: The atomic number represents the number of protons in an atom's structure (e.g., Manganese, Potassium, Arsenic, Calcium, Cobalt).
- VSEPR Theory (Valence Shell Electron Pair Repulsion): Important theory for predicting molecular shapes.
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Description
This quiz tests your understanding of the Big Bang Theory and its implications for the formation of elements in the universe. Topics include nucleosynthesis, evidence for the expanding universe, and the processes involved in stellar nucleosynthesis.
