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Topic 1. Cooperative relationships between microorganisms. Gearin (2016) describes cooperative relationships between different species of microscopic organisms called syntrophy. Answer the following two questions about this arrangement:
(a) What are the main characteristics of their partnership?
(b) How does each species benefit?
Use the Frost Circle to draw the energy levels of the Pi molecular orbitals for this ion, show the electronic configuration and explain why the ion is aromatic.
The metals in group 3A, 4A and 5A are not transition metals, however all but 1 has variable charges. What element in Group 3A, period 3 has a fixed charge, and what is that charge
In Horner-Wadsworth-Emmons reaction, a 1,2-disubstituted alkene was produced in which the olefinic protons exhibited at vicinal coupling of 9.0 Hz in the 1H NMR. What is the stoichiometry of the double bond.
A gaseous mixture containing 0.160 mol fraction of carbon tetrachloride (CCl4) and 0.840 mol fraction of dry air is initially at 57.0°C and 1133 mmHg. If this mixture is cooled at a constant pressure, at what temperature does the CCl4 first start ..
What volume of 6.00 M sodium hydroxide in millimeters must be diluted to 229.0 mL to make a 1.50 M solution of sodium hydroxide
Problem- The density of dry ice is about 1.5g/mL. What is the volume of carbon dioxide produced by sublimating a cube of dry ice that is 8.2mm on each side at a temperature of 298K and a pressure of exactly 1 atom
How long would it take for a radioactive isotope with a half life of 2 weeks to lose at least 70% of its radioactivity? Describe two clinical uses of Radioactivity.
The d-d transition in [Ti(H2O)6]+3(aq) produces an absorption maximum at 500 nm. What is the magnitude of ? for this complex in kJ/mol? HINT: E = h ? and c = ? ? Enter your answer using 3 significant figures.
If you prepare a 1.00 m solution of NH4ClO4 beginning with water at 25.5C, what is the final temperature of the solution in C?
How many mL of 0.525M calcium chloride are needed to obtain 5.00x10 22 chloride ions.
The molecular weight of the protein is 3.4e4 grams per mole. What is the molar concentration of the protein?
Calculate the amount of heat required to raise the temperature of 100.0g of water from -0.10 C to +0.10 C
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