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What makes carbon a unique element in terms of its nature for covalent bonding?
modern electron microscopy can emit a beam of electronswith a velocity of 1.5 x 108 ms.1. what is the wavelength of an
Dopa (Levodopa) is an oral medication used to treat Parkinson\'s disease, the symptoms of which result from a lack of dopamine in the brain. L-Dopa relies on L-type, or leucine-preferring, transport proteins to cross the blood-brain barrier
a 0.755 g sample of hydrated copper (II) sulfate was heated carefully until it had changed completely to anyhydous copper(II) sulfate (CuSO4) with a mass of 0.438 g. Determine the value of x
question a chemical reaction takes place inside of a simple constant pressure calorimeter that contains 100g of water.
While properly prepared, maple syrup will boil at a temperature 4.0 degree Celsius higher than pure water. Compute the final pressure that would need to be applied to the maple sap solution in order to remove the majority of the water by reverse o..
aluminum oxide used as an adsorbent or a catalyst for organic reactions forms when aluminum reacts with oxygen.4als
What volume of 0.600 M HCl is required to react completely with 2.50 g of sodium hydrogen carbonate?
1. some sulfuric acid is spilled on a lab bench. it can be neutralized by sprinkling sodium bicarbonate on it and then
Blood contains several substances that minimize changes in its acidity by reacting with either an acid or a base. One of these is the hydrogen phosphate ion, HPO42-.
calculate the quantity of lime and soda for softening 300,000 litres of water, using 20ppm as a coagulant.impurities in water are as follows Ca2+=160ppm, Mg2+=96ppm,HCO3- =512ppm, dissolved CO2 =34ppm.
Explain Difference between "strong" and "weak" For Acids and Bases. What is it? (Explain it to a middle school student who has never taken chemistry).
The Iron(3) ion have five unpaired electrons. In octahedral coordination complexes, it may have either one or five unpaired electrons. Using valence bond theory: 1. Draw and name the hybrid orbital schemes for these two situations
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