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Depending on its oxidation state and the environment it is in, it can be.
Chromium colors include black, red, orange, green, and yellow.
- Chromate salts contain the chromate ion, CrO4-2, and have an intense yellow color.
- Dichromate salts contain the dichromate ion, Cr2O7-2, and are an intense orange color.
- Chromic acid ( chromium trioxide, CrO3) is red
- Chromic oxide is a dark green
As a plated metal chromium is essentialy colorless.
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∙ 14y ago
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∙ 15y agoChromium metal is a steely-gray, lusterous material that can take a high polish.
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∙ 15y agochromic acid is found in a white sometimes cloudy depending on the temp of the acid
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∙ 13y agoChromium (Cr) has a silvery metallic appearance.
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∙ 13y agoMost chromates are yellow in colour, while some chromates of transition and post-transition metals also have different colours.
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∙ 12y agoIt's colour is steely gray.
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∙ 11y agochromium doesnt have any flame colour
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∙ 12y agoMost are orange coloured
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∙ 12y agogreen
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What color is barium dichromate?
Due to the presence of transition metal ions i.e. Chromium(VI) ions
How do you work out the valency of the dichromate radical -Cr2O7?
The dichromate ion has the charge -2.
How chromate ions are converted into dichromate ions?
In an acidic solution chromate ions are converted into dichromate ions.
What is magnesium dichromate?
MgCr2O7
WHAT IS Ag2Cr2O9?
Silver dichromate
Is heating ammonium dichromate a chemical or physical change?
It is a chemical change because the ammonium dichromate changes color, explodes, and probably creates a gas during the change.
Please Help me in finding the valency of dichromate in ammonium dichromate?
valency of dichromate in potassium dichromate
Why potassium dichromate is orange red in color?
The orange color of potassium dichromate is caused by the movement of an electron to a vacant d-orbital in the manganese atom. The transition occurs when the chemical is in the presence of light. This is confirmed by the empty 3d-orbital in chromium.
What is the definition of dichromats?
A dichromate is a compound that contains a divalent negative ion. They usually have a orange or red color.
What can be the color of Sodium Trichromate - Na2Cr3O10?
Its colour is blood red, i.e. more reddish than its dichromate
Name the following binary compound K2Cr2O7?
The chemical name is, potassium dichromate. It is orange in colour. Dichromate ion gives colour for this compound.
What is the name of ionic compound Cr2O3?
That would be the bichromate or sometimes called the dichromate ion. Example: Sodium bichromate (or sodium dichromate) is Na2Cr2O7.
What colour change will occur when potassium dichromate reacts with ethanol?
Potassium dichromate is orange and when it reacts with ethanol which is a primary alcohol it is going to oxidise it to form aldehyde which is colorless. so the color change is from Orange to Colorless. :)
What is K2Cr307?
potassium dichromate (PDC)
What is Na2CrO4 3H2O?
Na2Cr2O7 (the formula is not Na2CrO7) is sodium dichromate. Na2CrO4 is sodium chromate.
Name of K2Cr2O7?
The name for K2Cr2O7 is potassium dichromate.
Why are there 7 oxygen's in ammonium dichromate?
The dichromate ion is Cr2O7-2. Ammonium dichromate is two ammonium ions and one dichromate ion (to balance charges- ammonium has a +1 charge and dichromate has a -2 charge): (NH4)2Cr2O7. Therefore, ammonium dichromate would contain 7 oxygen atoms.
