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  1. ... when a further drop of MnO4- is added, a pink / pale pink colour is observed in the solution. Hence we...

  2. 因為 Fe2+其實係淺綠色,即係 pale green, 而iodine就係啡色,而且係深色既。 咁因為brown深色過 pale green, 所以加埋之後就只睇到深色個隻而睇唔到淺色。

  3. ...aq) + 6H2O (l) + 3SO2 (g) Hence D is correct. Pale green solution would be formed when Iron reacts with acids...

  4. ...the two samples. The one which turns aqueous chlorine solution from pale green to colourless is sodium sulphite. It is due to a...

  5. ... in short wave.[1] Absorption spectra In pale yellow stones a 415.5 nm line is typical. Irradiated and...

  6. ...一) and (SO4)2- makes solution darker. FeSO4 is pale green colour due to increase in conc. darker colour. (SO4...

  7. ...: Iron dissolves to change the solution from blue to ( pale ) green. Reddish brown solid is formed in the solution #見到metal...

  8. ...less reactant...所以reaction冇咁vigorous...危險性相對下降... 4.Cl2(aq) is pale yellow in colour....(gas = greenish yellow.... 5.it is covalent compound 6...

  9. During titration, the pH indicator (phenolphthalein) shouldbe put in the known solution, in this case, it is the 1M sodium hydroxidesolution, which is alkaline. Inside an alkaline medium, phenolphthalein will have a pinkcolour. At the end point of the titration (this time...

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