What does the octet rule in chemistry imply? What is the formal charge on phosphorus in a Lewis structure for the phosphate ion (PO43-) that satisfies the octet rule? a) 2 b) 1 c) 0 d) +1 e) +2 Predict the total number of valence electrons and the...
Draw the Lewis structure with a formal charge XeF_4.Draw the Lewis dot structure of phosphorus. How many valence electrons does it have? What is the charge of its stable ion?Draw the Lewis structure for HBrO2 and assign...
Using DWC's CH calculation we'd obtain CH = (measured Hardness gpg) x (data from table) CH = 20 x 1.1 = 22 Note that the DWC approach gives a lower CH number than does PureWater. Quoting the company's advice: When sizing water conditioning equipment, the hardness should be based on...
For the active transporter model, we assume AmtB is an active transporter of NH3by which ammonium is transported as NH4+or NH3 + H+(See our Fig.S1aand Fig. 2CD of van Heeswijk et al.5). Because of the positive charge, NH4+can accumulate inside cells up to a maximum concentration...
charge-transfer transition involving the Eu3+ion and the neighboring O2−ions. This charge-transfer transition peaks at about 230 nm. Hence, the absorption of 254-nm radiation is not very high, and about 25% of this radiation is reflected by the phosphor due to its high reflectivity. The...
Before we discuss the molecular rotation in detail, it is useful to consider the forces on an electric dipole, treated as a rigid object composed of two point charges, in the presence of a (positive) point charge. We have used a simple simulation to obtain the qualitative behavior of an ...
For one thing, when does condensation last for hours? And if cars spewed such lingering “contrails” on cold days, we’d be up on pollution charges. And another thing too – the planes must be getting worse at emitting vapors because they didn’t do always do this. If they did, ...
In one of the most inhospitable places on earth,Cueva de Villa Luz, a cave located in the southern Mexican state of Tabasco, arthropods thrive despite the fact that the waters have an extremely high concentration of hydrogen sulfide. Insects such aspredatory belostomatid bugs, have been shown ...
model, we propose that differences in charge and length of the pore β-hairpins impact physical properties of the lipid environment that could stimulate activity of mechanosensors, such as caveolin-1 to facilitate MAC removal and recovery from MAC attack. Similarly, membrane repair mechanisms ...
QENS demonstrated that jump diffusion of guaiacol was seen after adsorption on both the sulfided catalyst and reference pillared clay. INS showed that there were two types of interaction of guaiacol with the catalyst. The first is guaiacol adsorbed via various types of H-bonding interaction, as ...