color - Why are acids usually depicted in fiction as green?
Used chromic acid $\ce{H2SO4 / CrO3}$. Chromic acid a mixture of concentrated sulfuric acid and potassium dichromate commonly used for cleaning heavily polluted glassware a few decades ago. Initial color is brown-yellowish and is attributed to the formation of chromium trioxide $\ce{CrO3}$. Very strong oxidizing agent and a corrosive substance.
What color does gold turn when in contact with acid? - Answers
May 28, 2024 · When acid comes into contact with pH paper, the paper changes color depending on the level of acidity. The paper may turn a different color to indicate the acidity level of the substance being tested.
What Changes color in acid and bases? - Answers
May 22, 2024 · An acid-base indicator changes color in response to variations in pH. For example, litmus paper turns red in acids (pH < 7) and blue in bases (pH > 7). Phenolphthalein is colorless in acids and ...
Explanation for why nickel turns green in hydrochloric acid
Oct 15, 2019 · The question states that Nickel is added to aqueous Hydrochloric acid. The word aqueous might suggest that the complex that the present in the solution is [Ni(H2O)6]2+ and not [NiCl4]2- Now the thing to be noted is, NiSO4(aq)has the characteristic green color due to the formation of the complex cation [Ni(H2O)6]2+ which is green in color.
Which chemical changes the color of nitric acid? - Answers
May 21, 2024 · When nitric acid reacts with methyl orange, the color of the solution changes. Methyl orange is an indicator that changes color from orange/yellow in acidic solutions to red in basic solutions.
What is the color of the salicylic acid-Fe3 complex? - Answers
May 20, 2024 · The color of the salicylic acid-Fe3 complex is typically red or reddish-brown. This color is due to the formation of a complex between salicylic acid and iron ions, specifically Fe3+ ions, which ...
What color in acid is Indicator? - Answers
May 29, 2024 · No, ethanoic acid (acetic acid) is a weak acid and will turn universal indicator a different color depending on its pH level. It will likely turn universal indicator red or orange indicating ...
What color is nitric acid on the universal indicator? - Answers
May 24, 2024 · No, ethanoic acid (acetic acid) is a weak acid and will turn universal indicator a different color depending on its pH level. It will likely turn universal indicator red or orange indicating acidity.
What colour of litmus in sulfuric acid is? - Answers
Dec 2, 2024 · Acetic acid is a weak acid and does not change the color of red litmus paper. What colour does hydrochloric acid turn litmus? Hydrochloric acid turns litmus paper red, indicating that it is acidic.
Substances that change color in an acid or base? - Answers
Jun 5, 2024 · Litmus paper turns red in acid and blue in base, phenolphthalein is colorless in acid and pink in base, and red cabbage juice turns red in acid and blue in base. AnswerBot ∙ 6 mo ago