Formulae, Functional Groups And Terminology Continued
Bayani Gaba-gaba
Once you know the families of organic compounds, the next step is to describe a single molecule clearly. Chemists use several kinds of formula, each showing a different level of detail, from a bare count of atoms to a full picture of every bond.
In this lesson you will learn the difference between general, molecular, structural and displayed formulae, and meet structural isomers: different compounds that share the same molecular formula. These tools let you say exactly which molecule you mean.
Manufura
- State that a homologous series is a family of similar compounds with similar chemical properties due to the presence of the same functional group.
- State that a saturated compound has molecules in which all carbon-carbon bonds are single bonds.
- State that an unsaturated compound has molecules in which one or more carbon- carbon bonds are not single bonds.
- [Supplement] Describe the general characteristics of a homologous series as: (a) having the same functional group (b) having the same general formula (c) differing from one member to the next by a -CH₂- unit (d) displaying a trend in physical properties (e) sharing similar chemical properties.
Takardar Darasi
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Barka da kammala darasi akan Formulae, Functional Groups And Terminology Continued. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
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- Which type of formula shows every atom and every bond? A. Molecular B. General C. Displayed D. Empirical Answer: C
- Structural isomers have the same: A. Structural formula B. Molecular formula but different structures C. Number of carbon atoms only D. Boiling point Answer: B
- The structural formula of ethanol is: A. C2H6O B. CH3CH2OH C. CnH2n+1OH D. C2H4 Answer: B
- How many structural isomers does C4H10 have as alkanes? A. 1 B. 2 C. 3 D. 4 Answer: B
- A molecular formula gives the: A. Order of bonding B. Actual number of each atom C. Shape of the molecule D. Rule for a series Answer: B
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