Acertain reaction has the form aa → bb. at a particular temperature and [a]0 = 2.80 × 10-3 molar, data was collected of concentration versus time for this reaction. a plot of 1/[a]t versus time resulted in a straight line with a slope value of 3.60 × 10-2 m-1s-1. what is the concentration of a after 300 seconds? a.2.80 × 10-3 molar b.2.72 × 10-3 molar c.2.60 × 10-3 molar d.3.60 × 10-2 molar

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Which of the following shapes would represent a molecule with two bonded atoms and 3 lone pairs on only one of them , trigonal planar , bent , trigonal pyramidal , linear