malachite: Apresumptive test for blood. Thereagent is the dye leucomalachitegreen dissolved in water along withsodium perborate (NaBO3). A bluegreencolour indicates a positive result. Definition ChEBI: Copper(II) sulfate pentahydrate is the pentahydrate of copper(2+) sulfate. A bright blue crystal...
2.铜色的;紫铜色的;红棕色的 Copper is sometimes used to describe things that are reddish-brown in colour. e.g. His hair has reverted back to its original copper hue. 他的头发又变回原来的淡红棕色。 3.铜板;铜币 Coppers are brown metal coins of low value. ...
Copper(II) oxide, an insoluble metal oxide, and sulfuric acid reacted to produced Copper(II) sulfate, a soluble salt and blue in colour. Copper(II) sulfate was …show more content… However, after decantation and heating the solid copper a mass of 0.0698 g was recovered and the percentage...
2. copperGBfam(police officer): copper flicmf 3. copperGBfam(coin): copper petitemonnaief II.copper[ˈkɒpəʳ,Amˈkɑ:pɚ]ADJ(colour) copper cuivre copper-coloured cuivré(e) copper-oreSUBST copper-ore mineraimdecuivre
Model No. Copper Sulfate 99% Colour Blue Quality Food/Industry Grade Storage Cool Dry Place Molecular Weight 249.66 Copper Content 25.2% Model Cupric Sulfate Transport Package Bag Specification 25kg/Bag Trademark Rongxintong Origin Hebei HS Code 2833250000 Production Capacity 1500ton...
2. a.the reddish-brown colour of copper b.(as adjective):copper hair 3.Informalany copper or bronze coin 4.any of various small widely distributed butterflies of the generaLycaena, Heodes,etc., typically having reddish-brown wings: familyLycaenidae ...
a. Describe the structure of copper(II) sulfate pentahydrate. b. What color change occurs when the salt is heated? c. What causes the color change? Why do compounds that appear blue have more conjugation than red compounds? Explai...
sulfate. Iron is able to displace copper in this reaction because it is more active. In the reaction iron can either solid or aqueous but copper sulfate must be aqueous to facilitate the reaction. Copper sulfate is blue, but will become a yellow liquid once the copper is replaced by iron....
Iodine, heavy metal compounds such as titanium tetrachloride, iron(II) sulfate, iron(III) chloride, and copper(II) chloride, and complexes of siliceous material (MCM-41) and heavy metals such as Ti-MCM-41 and Fe-MCM-41 have been traditionally used as catalysts for carotenoid Z-isomerization...
[1](ii) State the colour change that occurs when water is added to this compound of copper.from... to ...[2](e)Aqueous potassium iodide reacts with aqueous copper(II) sulfate to produce iodine.(i) Balance the chemical equation for this reaction.KI + CuSO4 → CuI + I2 + K2SO4[2...