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Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...
A mnemonic is a memory aid used to improve long-term memory and make the process of consolidation easier. Many chemistry aspects, rules, names of compounds, sequences of elements, their reactivity, etc., can be easily and efficiently memorized with the help of mnemonics.
Cyr wheel – Acrobatic apparatus that consists of a single large ring made of aluminum or steel with a diameter approximately 10 to 15 cm (4 to 6 in) taller than the performer. Diving – Sport of jumping or falling into water from a platform or springboard, usually while performing acrobatics.
Though the term initially applied to tightrope walking, [citation needed] in the 19th century, a form of performance art including circus acts began to use the term as well. In the late 19th century, tumbling and other acrobatic and gymnastic activities became competitive sport in Europe. Acrobatics has often served as a subject for fine art.
Consonants are speech sounds that are articulated with a complete or partial closure of the vocal tract. They are generally produced by the modification of an airstream exhaled from the lungs. The respiratory organs used to create and modify airflow are divided into three regions: the vocal tract (supralaryngeal), the larynx , and the ...
Antanaclasis: a form of pun in which a word is repeated in two different senses. [16] Anthimeria: transformation of a word of a certain word class to another word class: such as a noun for a verb and vice versa. [17] Anthropomorphism: ascribing human characteristics to something that is not human, such as an animal or a god (see zoomorphism).
Affixes are bound by definition. [5] English language affixes are almost exclusively prefixes or suffixes: pre-in "precaution" and -ment in "shipment". Affixes may be inflectional, indicating how a certain word relates to other words in a larger phrase, or derivational, changing either the part of speech or the actual meaning of a word.
The open-chain form can be turned into a ring of carbon atoms bridged by an oxygen atom created from the carbonyl group of one end and the hydroxyl group of another. The cyclic molecule has a hemiacetal or hemiketal group, depending on whether the linear form was an aldose or a ketose. [38] In these cyclic forms, the ring usually has 5 or 6 atoms.