rallyroets
rallyroets rallyroets
  • 24-01-2017
  • Chemistry
contestada

Which of the following represent elements and which represent compounds?
A.HC1
B.CO
C.Na
D.Ca

Respuesta :

rustypup107 rustypup107
  • 24-01-2017
A and B are compounds
C and D are elements

In Chemistry, an element is shown by a single uppercase letter, sometimes followed by a lowercase letter.
In this case, Na is Sodium, and Ca is Calcium.

A and B have two uppercase letters, indicating that they are not an element, but a combination of elements, therefore, they are compounds (Hydrogen Chloride, and Carbon monoxide)
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