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  2. Chromium trioxide - Wikipedia

    en.wikipedia.org/wiki/Chromium_trioxide

    It is the acidic anhydride of chromic acid, and is sometimes marketed under the same name. [6] This compound is a dark-purple solid under anhydrous conditions and bright orange when wet. The substance dissolves in water accompanied by hydrolysis. [clarification needed] Millions of kilograms are produced annually, mainly for electroplating. [7]

  3. Chromic acid - Wikipedia

    en.wikipedia.org/wiki/Chromic_acid

    Chromium trioxide is the anhydride of molecular chromic acid. It is a Lewis acid and can react with a Lewis base, such as pyridine in a non-aqueous medium such as dichloromethane (Collins reagent). Structure of tetrachromic acid H 2 Cr 4 O 13 ·2H 2 O, one component of concentrated "chromic acid". The H-atom positions are calculated, not observed.

  4. Chromium(II) oxide - Wikipedia

    en.wikipedia.org/wiki/Chromium(II)_oxide

    It is readily oxidized by the atmosphere. CrO is basic, while CrO 3 is acidic, and Cr 2 O 3 is amphoteric. [3] CrO occurs in the spectra of luminous red novae, which occur when two stars collide. It is not known why red novae are the only objects that feature this molecule; one possible explanation is an as-yet-unknown nucleosynthesis process. [4]

  5. Chromium compounds - Wikipedia

    en.wikipedia.org/wiki/Chromium_compounds

    The change in equilibrium is visible by a change from yellow (chromate) to orange (dichromate), such as when an acid is added to a neutral solution of potassium chromate. At yet lower pH values, further condensation to more complex oxyanions of chromium is possible. Both the chromate and dichromate anions are strong oxidizing reagents at low pH ...

  6. College Football Playoff ranking prediction: How the top 10 ...

    www.aol.com/college-football-playoff-ranking...

    The penultimate College Football Playoff rankings will be released Tuesday. Our projection of how the top 10 will look ahead of championship weekend.

  7. What is impoundment? How Trump thinks he can control spending ...

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    A version of this story appeared in CNN’s What Matters newsletter. To get it in your inbox, sign up for free here. “Impoundment” is another word that Americans may need to learn in the ...

  8. Holiday mocktails for anyone going dry during Christmas or ...

    www.aol.com/holiday-mocktails-anyone-going-dry...

    French '89 Ingredients 1 oz non-alcoholic gin 1/4 oz simple syrup 1/4 oz lemon juice 3 oz non-alcoholic sparkling wine (chilled in advance) Lemon peel for garnish Method: Add all ingredients to glass.

  9. Chromium(III) oxide - Wikipedia

    en.wikipedia.org/wiki/Chromium(III)_oxide

    Although insoluble in water, it reacts with acid to produce salts of hydrated chromium ions such as [Cr(H 2 O) 6] 3+. [10] It is also attacked by concentrated alkali to yield salts of [Cr(OH) 6] 3−. When heated with finely divided carbon or aluminium, it is reduced to chromium metal: Cr 2 O 3 + 2 Al → 2 Cr + Al 2 O 3