根据后文“It contains small amounts of carbon dioxide absorbed from the air. This makes rainwater very slightly acidic. (它含有从空气中吸收的少量二氧化碳。这使得雨水呈微酸性)”可知,雨水不是纯水,而是携带了少量从空气中吸收的二氧化碳;这使得雨水有非常轻微的酸性。故A选项“雨不是纯净的水”概括下文...
Diet Coke's sixth ingredient is citric acid, while Coke Zero's is potassium citrate. Citric acid is the acidic component of citrus fruits like lemons and limes. If you've ever made homemade jam or other canned foods, you may have purchased citric acid at the grocery store. Citric acid ...
Chemical functionalisation of single-walled carbon nanotubes (SWNTs) has been achieved by hydrothermal treatment (HT) in aqueous acidic solutions. Depending on the type of acid chlorine, bromine or sulphur could be attached to the conjugated 蟺-system. Apart from the well known effects of acid...
From this expressed sequence tag library, 250 plasmids were analyzed, leading to the identification of the 60S acidic ribosomal protein and the partial sequence of Class I chitinase. Subsequently, a cDNA library of white jute was constructed and ESTs were characterized (Tao et al., 2015). Here...
Which of the following is the strongest oxidizing agent? a.)H2O2 in acidic environmentb.) H2O2 in basic environmentc.) MNO4- in basic environmentd.) MNO4- in acidic environmente.) CrO42- in What is the oxidation number of iodine?
The resulting sulfonamides are non-basic and, when derived from primary amines, are even acidic.The preparation of tosyl esters and amides are conducted in the presence of a base, which absorbs hydrogen chloride. The selection of the base is often crucial to the efficiency of tosylation. ...
Acidic well water creates several problems not only for the plumbing system but is dangerous for human health too. It is no doubt a major concern for all of us, but more importantly, it’s about selecting the best acid neutralizer for well water. Using an acid neutralizer is the most effe...
Chlorine dioxide is prepared from an acidic solution of NaClO2 or NaClO3, and medium and small-scale ClO2 generators mostly utilize NaClO2 as a raw material. When a large amount of chlorine dioxide is required, NaClO3is then used. Chlorine dioxide can be produced either by the oxidation of chl...
Why is groundwater acidic? Why is chloroacetic acid stronger than acetic acid? Why does chlorine react readily? Why does NaCl dissolve in water? What determines the strength of an acid? Why is HF so corrosive? Why is EDTA used for titration? Why does sodium bicarbonate fizz? Why is picric...
(iii) In spite of having same electronegativity, oxygen forms hydrogen bond while chlorine does not. View Solution Why is H2S more acidic than water ? View Solution Draw the structure of : (i)BrF3(ii)XeOF4 (b) Explain giving reason in each case : (i) Why H2 Te is more acidic...