Consequently, some of the cerium nitrates bonded with the acid providing the results that he was looking for. Mosander separated the results using both sodium oxalate and heat, thus, making the first discovery of lanthanum in 1839. Lanthanum was first created in the pure metal form by H. ...
an oil rich in omega-3 polyunsaturated fatty acids; because of the high polyunsaturated fatty acid content, it should be kept refrigerated and even then has a limited shelf life. flyes an exercise targetting the pectoral muscles usually performed by lying face-up on a bench with arms almost s...
Watch these segments. The environmental effects of fossil fuels are taught as well. Global warming, acid rain, and geoengineering all are in this part of the course. Part of their solution is too. Renewables follow, with clips on solar, wind, hydro, geothermal, biofuels, etc. You’ll even...
Baclofen, a racemic -aminobutyric acid B receptor agonist, commonly treats multiple sclerosis-related spasticity, but its frequent dosing and often poor tolerability present practical obstacles. Baclofen's R-enantiomer, arbaclofen, demonstrates a markedly superior affinity for the -aminobutyric acid B ...
(diethylamino)sulfur difluoride when heated. Whether this is better than working with the alternative – gaseoussulfur tetrafluoride, which releases highly corrosivehydrofluoric acidupon contact with moisture – is questionable. ‘Having that nice s...
In 2009, NASA announced that samples returned from Comet Wild 2 during theStardust missionrevealed a building block of life — glycine. It was the first time anamino acid was found in a comet. In 2014, the European Space Agency'sRosetta spacecraftentered orbit aroundComet 67P/Churyumov-Ger...
acid any solute that dissociates in solution and releases a hydrogen ion (H+) and an anion base any solute that dissociates in solution and releases hydroxide ions (OH-) and a cation salt -any ionic compound consisting of any cation except hydrogen and any anion except hydroxide. ...
to the type of atoms involved are needed, such as ionic interaction, van der Waal’s interaction, or H-bonding, in combination with a regular chemical structure. However, the cellulose I structure is not merely a result of spontaneous processes. It is well known that cellulose, when ...
What is the name of the element, where protons are derived for acid proton production? Give the name of the corresponding element for each of the below chemical symbols. a. Te b. Pd c. Zn d. Si e. Cs f. Bi g. F h. Ti Name one physical property that could not be used ...
its atmosphere is up to 100 times denser than Earth's and is mostly carbon dioxide with sulfuric acid clouds. The surface of Saturn's moon Titan physically resembles Earth's, with mountains, rivers, lakes, and seas. The difference is that Titan's mountains are made from water ice, which ...