Examlex
For the questions that follow, consider the BEST Lewis structures of the following oxyanions:
(i) NO2-
(ii) NO3-
(iii) SO32-
(iv) SO42-
(v) BrO3-
-In which of the ions do all X-O bonds (X indicates the central atom) have the same length?
Information Technology
The use of computers and software to manage information, particularly in enterprise environments, including hardware, software, databases, and networks.
Increase Efficiency
The process of improving the effectiveness and productivity of operations, often by optimizing resources and reducing waste.
Chemistry
The science that deals with the properties, composition, and structure of substances, the transformations they undergo, and the energy released or absorbed during these processes.
Less-Developed Countries
Countries with low levels of industrialization, underdeveloped agricultural sectors, and lower standards of living and Human Development Index (HDI) scores compared to more developed countries.
Q10: The pressure exerted by a column of
Q27: From the information given below, calculate the
Q27: The kinetic energy of a 10.3 g
Q49: In the de Broglie formula describing the
Q52: There are _ unpaired electrons in a
Q65: In some molecules and polyatomic ions, the
Q88: The formal charge on carbon in the
Q91: Which of the following statements is not
Q121: A sample of H<sub>2</sub> gas (2.0 L)at
Q127: Of the molecules below, only _ is