A: The metallic compounds which are found in nature, called as minerals whereas the minerals which can Q: Given each of the following values, is the starting material or product lower in energy? A: The relationship between gibbs free energy and equilibrium constant is given by.
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A: Molarity: The concentration for solutions is expressed in terms of molarity as follows,. A: In mass spectroscopy an organic compound is vaporized and is analyzed by the bombardment with high e A: The secondary valence is the number of ions of molecules that are coordinated to the metal ion. Q: How many hydrogen atoms are in 2,2-dimetylhexane? A: Structure of 2,2-dimethylhexane is given by,. Q: Write the balanced molecular and net iconic equation for the reaction.
Chromium with hydrobromic a Q: Draw the products formed when ethylene oxide is treated with each reagent. H2O H2SO4 c. A: NOTE: Hi, since there are multiple subparts posted we will provide you with answers for the first th Q: A Calculate the spec A: The Lewis structure or molecular skeleton is also known as electron dot structure.
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In given nickel comple Tryptophan is an aromatic amino acid. Lysine is The given statement is true. Aromatic amino acid is tryptophan and it is made up of an indole rin Q: If the reaction of an alcohol with PBr3 follows an SN2 mechanism, what is the stereochemistry of the A: The chemical reaction between phosphorous tribromide and R -butanol and stereochemistry of the p Indicate the chemical formul The charge on iodine is -1, as it is a gro Q: Which of the following cannot leave or enter a closed system: heat, work, or matter?
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Together, these results show that, rather than an oxidant, HOBr is a powerful electrophilic reactant. This chemical property was theoretically confirmed by measuring the positive Mulliken and ChelpG charges upon bromine and chlorine. In conclusion, the high electrophilicity of HOBr could be behind its well-established deleterious effects.
We propose that HOBr is the most powerful endogenous electrophile. It is a highly corrosive, strong mineral acid with many industrial uses. Hydrochloric acid is found naturally in gastric acid. It is a member of the binary acids. Why is HF a weak acid, when the rest of the hydrohalic acids are strong?
One might correctly assume that fluorine is very electronegative, so the H-F bond is highly polar and we can expect HF to dissociate readily in solution; this reasoning is not wrong, but the electronegativity argument is trumped by considerations of ionic size. Recall the periodic trend that ionic size increases as we move down the periodic table. Because fluorine is at the top of the halogens, the F — ion is the smallest halide; therefore, its electrons are concentrated around its nucleus, and as a result, the H-F bond is relatively short.
Shorter bonds are more stable, and thus the H-F bond is more difficult to break. Once we move down to chlorine, howver, the trend changes. Chlorine is larger and has more electrons, and therefore the H-Cl bond is longer and weaker. The same reasoning applies for both HBr and HI. These acids are even stronger than HCl because the Br — and I — ions are even larger. As such, the H-Br and H-I bonds are even weaker, and these compounds also readily dissociate in solution.
Binary acids are one of two classes of acids, the second being oxoacids or oxyacids , which consist of hydrogen, oxygen, and a third element, which is often a non-metal. An oxoacid sometimes called an oxyacid is an acid that contains oxygen. To be more specific, an oxoacid is an acid that:. Sulphuric acid : Drops of the concentrated oxoacid sulfuric acid sulphuric acid rapidly dehydrate a piece of cotton towel.
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