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Questions and Answers
An atom is the ______ indivisible portion of a pure chemical substance
An atom is the ______ indivisible portion of a pure chemical substance
smallest
A compound is a pure chemical substance composed of more than one ______
A compound is a pure chemical substance composed of more than one ______
element
A molecule is the ______ indivisible portion of a pure chemical substance
A molecule is the ______ indivisible portion of a pure chemical substance
smallest
Molecules are typically a set of atoms bound together by ______ bonds
Molecules are typically a set of atoms bound together by ______ bonds
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Chemistry is the scientific study of the properties and behavior of ______.
Chemistry is the scientific study of the properties and behavior of ______.
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Chemistry also addresses the nature of chemical ______ in chemical compounds.
Chemistry also addresses the nature of chemical ______ in chemical compounds.
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Chemistry explains aspects of plant growth (botany), the formation of igneous rocks (geology), how atmospheric ozone is formed and how environmental pollutants are degraded (ecology), the properties of the soil on the moon (cosmochemistry), how medications work (pharmacology), and how to collect DNA evidence at a crime scene (forensics).
Chemistry explains aspects of plant growth (botany), the formation of igneous rocks (geology), how atmospheric ozone is formed and how environmental pollutants are degraded (ecology), the properties of the soil on the moon (cosmochemistry), how medications work (pharmacology), and how to collect DNA evidence at a crime scene (forensics).
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Chemistry is often associated with the quest to turn lead or other base metals into ______.
Chemistry is often associated with the quest to turn lead or other base metals into ______.
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The current model of atomic structure is the ______ model.
The current model of atomic structure is the ______ model.
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Matter can be a pure chemical substance or a ______ of substances.
Matter can be a pure chemical substance or a ______ of substances.
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The nucleus is made up of positively charged protons and uncharged ______.
The nucleus is made up of positively charged protons and uncharged ______.
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Alchemy is often associated with the quest to turn lead or other base metals into ______.
Alchemy is often associated with the quest to turn lead or other base metals into ______.
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The current model of atomic structure is the ______ model.
The current model of atomic structure is the ______ model.
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The atom is the basic unit of ______.
The atom is the basic unit of ______.
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A chemical element is a pure substance which is composed of a single type of ______.
A chemical element is a pure substance which is composed of a single type of ______.
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Which organization developed the most frequently used chemical nomenclature worldwide?
Which organization developed the most frequently used chemical nomenclature worldwide?
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Which publication contains the rules for naming organic compounds according to IUPAC?
Which publication contains the rules for naming organic compounds according to IUPAC?
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Which publication defines technical terms used in chemistry according to IUPAC?
Which publication defines technical terms used in chemistry according to IUPAC?
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Which chemical nomenclature system is the most commonly used?
Which chemical nomenclature system is the most commonly used?
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What is the main aim of chemical nomenclature?
What is the main aim of chemical nomenclature?
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Who published the first widely accepted proposals for standardization of chemical nomenclature?
Who published the first widely accepted proposals for standardization of chemical nomenclature?
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What is the main difference between chemical nomenclature and lexicography?
What is the main difference between chemical nomenclature and lexicography?
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Which organization was responsible for developing nomenclature for organic and inorganic chemistry?
Which organization was responsible for developing nomenclature for organic and inorganic chemistry?
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What is the naming convention for type-I ionic binary compounds?
What is the naming convention for type-I ionic binary compounds?
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How are type-II ionic binary compounds named?
How are type-II ionic binary compounds named?
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What is the purpose of the Roman numeral in type-II ionic binary compound names?
What is the purpose of the Roman numeral in type-II ionic binary compound names?
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Chemical substances are classified in terms of their structure, phase, as well as their chemical compositions. They can be analyzed using the tools of ______ analysis, e.g. spectroscopy and chromatography.
Chemical substances are classified in terms of their structure, phase, as well as their chemical compositions. They can be analyzed using the tools of ______ analysis, e.g. spectroscopy and chromatography.
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The basis of a chemical transformation is the rearrangement of electrons in the ______ bonds between atoms.
The basis of a chemical transformation is the rearrangement of electrons in the ______ bonds between atoms.
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The mass number is the sum of the number of protons and ______ in a nucleus.
The mass number is the sum of the number of protons and ______ in a nucleus.
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The nucleus is dense; the mass of a nucleon is approximately 1,836 times that of an electron, yet the radius of an atom is about 10,000 times that of its ______.
The nucleus is dense; the mass of a nucleon is approximately 1,836 times that of an electron, yet the radius of an atom is about 10,000 times that of its ______.
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Chemistry is sometimes called the ______ science because it provides a foundation for understanding both basic and applied scientific disciplines at a fundamental level.
Chemistry is sometimes called the ______ science because it provides a foundation for understanding both basic and applied scientific disciplines at a fundamental level.
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Chemistry explains aspects of plant growth (botany), the formation of igneous rocks (geology), how atmospheric ozone is formed and how environmental pollutants are degraded (ecology), the properties of the soil on the moon (cosmochemistry), how medications work (pharmacology), and how to collect DNA evidence at a crime scene (forensics). Chemistry is a study that has existed since ______ times.
Chemistry explains aspects of plant growth (botany), the formation of igneous rocks (geology), how atmospheric ozone is formed and how environmental pollutants are degraded (ecology), the properties of the soil on the moon (cosmochemistry), how medications work (pharmacology), and how to collect DNA evidence at a crime scene (forensics). Chemistry is a study that has existed since ______ times.
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The word chemistry comes from a modification during the Renaissance of the word _______, which referred to an earlier set of practices that encompassed elements of chemistry, metallurgy, philosophy, astrology, astronomy, mysticism, and medicine.
The word chemistry comes from a modification during the Renaissance of the word _______, which referred to an earlier set of practices that encompassed elements of chemistry, metallurgy, philosophy, astrology, astronomy, mysticism, and medicine.
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Identifiable molecules compose familiar substances such as _____, air, and many organic compounds like alcohol, sugar, gasoline, and the various pharmaceuticals.
Identifiable molecules compose familiar substances such as _____, air, and many organic compounds like alcohol, sugar, gasoline, and the various pharmaceuticals.
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The structure of diatomic, triatomic or tetra-atomic molecules may be ______, (linear, angular pyramidal etc.) the structure of polyatomic molecules, that are constituted of more than six atoms (of several elements) can be crucial for its chemical properties.
The structure of diatomic, triatomic or tetra-atomic molecules may be ______, (linear, angular pyramidal etc.) the structure of polyatomic molecules, that are constituted of more than six atoms (of several elements) can be crucial for its chemical properties.
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Instead, these substances are discussed in terms of formula units or unit cells as the smallest repeating structure within the ______.
Instead, these substances are discussed in terms of formula units or unit cells as the smallest repeating structure within the ______.
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The names for inorganic compounds are created according to the ______ nomenclature system.
The names for inorganic compounds are created according to the ______ nomenclature system.
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