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What does the adjective unfeeling mean? There are three meanings listed in OED's entry for the adjective unfeeling . See ‘Meaning & use’ for definitions, usage, and quotation evidence.
Learn about and revise ionic compounds with this BBC Bitesize GCSE Chemistry (Edexcel) study guide.
Jul 3, 2017 · Look up definitions of chemistry words in this comprehensive A to Z chemistry dictionary. The glossary is organized alphabetically.
- Bracket notation. When it’s used: In condensed formulas. What it means: Signifies that a substituent is attached directly to the preceding carbon. Example: CH3C(O)CH2CH3 (2-butanone)
- n-, s-, and t- When it’s used: for short chain alkanes and alcohols. What it means: n- means “normal” – an unbranched chain with the functional group (if present) on the 1-position.
- The N- prefix. When it’s used: for amines and amides. What it means: The N– signifies that the substitutent is connected to the nitrogen. Example: N-methyl butylamine, N,N-dimethylformamide.
- L and D. When it’s used: for sugars and amino acids. What it means: It goes back to Emil Fischer, who designated the two enantiomers of glyceraldehyde (the simplest sugar) L-glyceraldehyde and D-glyceraldehyde.
At equilibrium the concentration of reactant and products remain constant but NOT necessarily equal. Equilibrium can only be obtained in a closed system where the reaction is carried out in a...
Definition of unfeeling adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Measurements may be accurate, meaning that the measured value is the same as the true value; they may be precise, meaning that multiple measurements give nearly identical values (i.e., reproducible results); they may be both accurate and precise; or they may be neither accurate nor precise.
