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Chromium reacts directly with fluorine, F2, at 400°C and 200-300 atmospheres to form chromium(VI) fluoride, CrF6.
Cr(s) + 3F2(g) → CrF6(s) [yellow]
Under milder conditions, chromium(V) fluoride, CrF5, is formed.
2Cr(s) + 5F2(g) → 2CrF5(s) [red]
Under still milder conditions, chromium metal reacts with the halogens fluorine, F2, chlorine, Cl2, bromine, Br2, and iodine, I2, to form the corresponding trihalides chromium(III) fluoride, CrF3, chromium(III) chloride, CrCl3, chromium(III) bromide, CrBr3, or chromium(III) iodide, CrI3.
2Cr(s) + 3F2(g) → 2CrF3(s) [green]
2Cr(s) + 3Cl2(g) → 2CrCl3(s) [red-violet]
2Cr(s) + 3Br2(g) → 2CrBr3(s) [very dark green]
2Cr(s) + 3I2(g) → 2CrI3(s) [very dark green]
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Is oxygen's reactivity high or low?
Oxygen stays as diatomic molecules in the atmosphere. These 2 oxygen atoms are bond with a double bond. So reactivity of oxygen is low.
A substance that has high reactivity does what?
A substance that has high reactivity displaces dissolved oxygen.
Is an element's reactivity determined by the number of protons found in an atom of an element?
^.^
Ability of a substance to react chemically?
reactivity, the tendency of an element to react with another substance is know n as its reactivity. the more the capacity of an element to react with another substance the more will be its reactivity, the series of elements arranged in their decreasing reactivity is known as reactivity series.
A substance that has a high reactivity?
Phosphorus. Due to its high reactivity, this element can't be found in its free state.
What is the reactivity of an element?
Reactivity is a term related to the aggressiveness (or not) of an element to combine with other elements. Oxygen, Chlorine, and Fluorine are among the most aggressive.
What has the author William Brian Jennings written?
William Brian Jennings has written: 'Conformation and reactivity of tricarbonyl (arene) chromiums'
What is chromiums atomic mass?
Chromium is a metal element. Atomic mass of it is 51.996.
Is the ease and speed with which an element combines with other substances?
ReactivityThe ease and speed with which an element combines with other elements and compounds is called the "reactivity" of the element.
How does atomic mass indicated element reactivity?
There is no good correlation lies between the element reactivity and the atomic mass.
Is oxygen's reactivity high or low?
Oxygen stays as diatomic molecules in the atmosphere. These 2 oxygen atoms are bond with a double bond. So reactivity of oxygen is low.
A substance that has high reactivity does what?
A substance that has high reactivity displaces dissolved oxygen.
What is the most abundant element in the earth?
The most abundant element on earth is Oxygen. But due to its high reactivity, most oxygen occurs in combined state, generally in oxides.
Is an element's reactivity determined by the number of protons found in an atom of an element?
^.^
What element has a similar chemical reactivity in water as K?
because the k is the reactivity of similar chemical
Is it impossible for an element to replace atoms of anothe element in a compound?
No. In a displacement reaction, that is exactly what happens. If an element low down in the reactivity series is in a compound, and you add an element that is higher placed in the reactivity series. The more reactive element will displace the less reactive element in the compound.Example:Copper Sulphate - Copper is low in the reactivity series and is in a compoundSodium + Copper Sulphate - Sodium is higher in the reactivity series than copper, and is in it's pure elemental form.Copper + Sodium Sulphate - The Sodium that is higher in the reactivity series has switched places with the Copper, which is lower in the reactivity series.FULL EQUATION:Sodium + Copper Sulphate --> Copper + Sodium Sulphate
Ability of a substance to react chemically?
reactivity, the tendency of an element to react with another substance is know n as its reactivity. the more the capacity of an element to react with another substance the more will be its reactivity, the series of elements arranged in their decreasing reactivity is known as reactivity series.
