Chemical compositionis defined as the type of atoms bound within the molecules of chemical substances and their arrangements and ratios. Chemical composition or chemical makeup is usually expressed with thechemical formulaof the given substance. For example, the chemical composition of water is illustra...
④The biggest difference, however, between human noses and the electronic noses that have been built so far is the brain. We need our brains to explain each smell we meet. But the electronic nose can only identify thechemicalmakeup of a smell while our brain can decide whether something you...
-The production of ammonia in the Haber process. -The production of azo dyes from two aromatic rings bonding to a nitrogen atom, Ar-N. -The synthesis of slaked lime from calcium oxide and water. What is Synthesis in Chemistry? The word synthesis refers to the formation of new items throug...
有酸洗、碱洗、氨洗、污泥剥离,溶剂清洗等Chemical cleaning refers to the method of dissolving and removing dirt and scale attached to metal surfaces by usingacids, alkalis, organic chelating agents, dispersants and other chemical agents.There are pickling, alkali washing, ammonia washing, sludge strippi...
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The oxygen concentration in the feedwater is reduced to 5 parts per billion (ppb) to reduce the corrosivity of the water. Carbon dioxide and other volatile substances such as ammonia and hydrazine, if present, will be only partially removed because of their solubility in water (Elliot, 1989;...
AmmoniaNH31711.45–897.4190 to 2051920 Sodium carbonateNa2CO310611.370.5857.145.590–951400 The greatest challenge of any novel recovery technique is to be able to produce under attractive economic and environmental conditions (Islam 1999;Khan et al. 2006e). Due to the high cost of synthetic alkalin...
Examples of suitable biological and/or chemical decontamination reagents nonexclusively include adsorbents such as activated carbon, zeolites, agar/agarose hydrogel imbibed with alkali such as sodium hydroxide, potassium hydroxide, and ammonium hydroxide; acids; bases such as alkalis or ammonia compounds, ...
Imagine, for a moment, that you have a bunch of balloons made up of two sausage-shaped balloons and two round ones, all attached at the neck. What shape would they make, as a whole? Probably, the two long balloons would form a sort of rough V, and the two round ones would stick ...
To describe the atomic makeup of compounds, chemists use systematic methods for naming compounds and writing chemical formulas. In this chapter, you will be introduced to some of the rules used to identify simple chemical compounds. MAIN IDEA Formulas tell the number and kinds of atoms in a...