Chemically, what is rectified spirit? What is the definition of matter? What does polyprotic mean? Define phosphorescence. What does Li stand for? Which conducts better, BeCl or MgCl2? What is the name of K2Cu(CN)4? What is a crucible?
Why are noble gases chemically inert? Is carbon-12 chemically active or inert? Define noble gases What does isoelectronic mean in chemistry? What is a reactive atom? What does stable isotope mean? What does it mean for an atom to have an unstable level/amount (of) Valence electron(s)?
This means that we should not think of “applied” chemistry as being inferior to “pure” chemistry, as does the author of one school textbook, who says that, of the two sides of chemistry, “pure” chemistry is “infinitely the more important” (quoted by Hughes 1975, p. 111). Nor ...
But what does that really mean? Since there is no universal definition or standard of identity for the term “natural soap”, it is not regulated by the government, and soapmakers and marketers can use the term as loosely or as strictly as they wish. Because of this, there are a couple...
and vulnerable to chemically illiterate bans. ‘I don’t know how to make it clear to the public that only some compounds of a given element are toxic, and even that only above some particular concentration, while too little of that same element may even cause health problems,’ he says....
Chemically plausible RNs allow neither a perpetuum mobile, i.e., a “futile cycle” of reactions with non-vanishing energy production, nor the creation or annihilation of mass. Such RNs are said to be thermodynamically sound and conservative. For finite RNs, both conditions can be expressed equi...
One key process in semiconductor manufacturing is lithography. Lithography involves coating a wafer with a light-sensitive material called photoresist, shining light through a mask (which contains the chip’s pattern) onto the wafer, and chemically developing the exposed areas of the wafer to reveal...
sphysiologyand the rigors of its environment. In temperate climate plants lost flower early enough so that their seeds can mature before the deadly winds of autumn. Depending on how quickly the seed and food develop flowering may occur in spring as it does in oaks; in summer as in lettuces...
What does it mean to caramelize vegetables? Caramelizing isthe process of cooking sugar until it browns. When cooking vegetables, caramelization occurs when water steams off and the vegetable's natural sugar breaks down. The process catapults the vegetable's natural flavor while adding a distinct...
Common methods include filtering, distilling, or chemically treating the substance to remove all impurities. 8 What are the health implications of consuming non-pure substances? Consuming non-pure substances can lead to health risks if they contain harmful impurities or contaminants. 8 What does it ...