Examlex
What element is represented by the electron configuration 1s22s22p63s23p64s13d5?
Q3: Mendeleev proposed the existence of an unknown
Q15: Glycine, C<sub>2</sub>H<sub>5</sub>O<sub>2</sub>N, is important for biological energy.
Q33: The substance (CH<sub>3</sub>CH<sub>2</sub>)<sub>2</sub>NH is considered to be<br>A)
Q48: Calcium nitrate tetrahydrate dissolves in warm water
Q97: To which one of the following reactions,
Q114: Which one of the following molecules is
Q118: When molecules that exhibit separation of charges
Q134: _ is defined by the following equation<br>
Q141: Which of the following has a standard
Q145: Which of these chemical equations does not