• 2022-06-07
    Compounds with a symmetry plane are chiral
  • 错误

    内容

    • 0

      Radial symmetry in adults and bilateral symmetry in juveniles(幼体) in the echinodermata (棘皮动物).

    • 1

      Compounds composed of molecules (molecular compounds) usually contain only elements.

    • 2

      S-containing compounds are a group of naturally occurring chemical compounds that mostly contain basic nitrogen atoms.

    • 3

      Aroma compounds in food have no relationship with other compounds in<br/>food such as non volatile compounds. ( )

    • 4

      Matter is composed of ______ , compounds and ______ .