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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.
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 ...
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.
Cheerleading - is an activity in which the participants (called cheerleaders) cheer for their team as a form of encouragement. Contortion – Performance art in which performers called contortionists showcase their skills of extreme physical flexibility. Corde lisse – Aerial circus skill or act that involves acrobatics on a vertically hanging ...
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.
Because the S 2− anion has a subscript of 2 in the formula (giving a 4− charge), the compound must be balanced with a 4+ charge on the Pb cation (lead can form cations with a 4+ or a 2+ charge). Thus, the compound is made of one Pb 4+ cation to every two S 2− anions, the compound is balanced, and its name is written as lead(IV) sulfide .