37 Questions
An atom is the ______ indivisible portion of a pure chemical substance
smallest
A compound is a pure chemical substance composed of more than one ______
element
A molecule is the ______ indivisible portion of a pure chemical substance
smallest
Molecules are typically a set of atoms bound together by ______ bonds
covalent
Chemistry is the scientific study of the properties and behavior of ______.
matter
Chemistry also addresses the nature of chemical ______ in chemical compounds.
bonds
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).
applications
Chemistry is often associated with the quest to turn lead or other base metals into ______.
gold
The current model of atomic structure is the ______ model.
quantum mechanical
Matter can be a pure chemical substance or a ______ of substances.
mixture
The nucleus is made up of positively charged protons and uncharged ______.
neutrons
Alchemy is often associated with the quest to turn lead or other base metals into ______.
gold
The current model of atomic structure is the ______ model.
quantum mechanical
The atom is the basic unit of ______.
chemistry
A chemical element is a pure substance which is composed of a single type of ______.
atom
Which organization developed the most frequently used chemical nomenclature worldwide?
International Union of Pure and Applied Chemistry (IUPAC)
Which publication contains the rules for naming organic compounds according to IUPAC?
Blue Book
Which publication defines technical terms used in chemistry according to IUPAC?
Gold Book
Which chemical nomenclature system is the most commonly used?
CAS
What is the main aim of chemical nomenclature?
To standardize communication and practice
Who published the first widely accepted proposals for standardization of chemical nomenclature?
Louis-Bernard Guyton de Morveau
What is the main difference between chemical nomenclature and lexicography?
Chemical nomenclature aims to standardize communication, while lexicography collects and reports the meanings of words
Which organization was responsible for developing nomenclature for organic and inorganic chemistry?
The International Union of Pure and Applied Chemistry
What is the naming convention for type-I ionic binary compounds?
The cation is named first, followed by the anion
How are type-II ionic binary compounds named?
The cation is named first, followed by a Roman numeral indicating its charge
What is the purpose of the Roman numeral in type-II ionic binary compound names?
To indicate the oxidation state of the cation
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
The basis of a chemical transformation is the rearrangement of electrons in the ______ bonds between atoms.
chemical
The mass number is the sum of the number of protons and ______ in a nucleus.
neutrons
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 ______.
nucleus
Chemistry is sometimes called the ______ science because it provides a foundation for understanding both basic and applied scientific disciplines at a fundamental level.
central
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.
ancient
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.
alchemy
Identifiable molecules compose familiar substances such as _____, air, and many organic compounds like alcohol, sugar, gasoline, and the various pharmaceuticals.
water
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.
trivial
Instead, these substances are discussed in terms of formula units or unit cells as the smallest repeating structure within the ______.
substance
The names for inorganic compounds are created according to the ______ nomenclature system.
inorganic
Test your knowledge of chemistry with this quiz! Explore topics such as the properties of matter, chemical reactions, and the nature of chemical bonds. Challenge yourself and see how much you know about this fascinating scientific field!
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