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Manganese lies between aluminium and zinc in the reactivity series, and forms a 2+ ion. Solutions of manganese (ll) salts are very pale pink (almost colourless) Reactivity sries in order from most reactive to least:
Potassium
Sodium
Lithium
Calcium
Magnesium
Aluminium
Manganese
Zinc
Iron
(Hydrogen)
Copper
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What happens with Aluminum and zinc nitrate?
Aluminium would displace zinc as it is higher in the reactivity series. Al + Zn(NO3)2 = Al(NO3)3 + Zn
Why is gold not used for sacrificial protection?
Sacrificial protection is only effective if the metal used for sacrificial protection is more reactive than Iron in the reactivity series. Since gold is one of the least reactive metals in the reactivity series, it would not get oxidized in the place of Iron. A more reactive metal than Iron, e.g. Zinc, is used as the Zinc metal would oxidize in the place of iron, thus preventing Iron from rusting.
If copper would have been high up in reactivity series would it still have been a useful metal give reason?
No it wouldn't be. Metals high up in the reactivity series, such as the alkali metals, react with water. Copper metal wouldn't stay a metal for long if it reacted vigorously with water (which is the same reason that lithium, potassium, and sodium and not commonly found in their metallic state). Most metals that react with water are found as dissolved ions, and not as solid metals.See the Related Questions to the left for more information about the reactivity series.
Image of emission or absorption spectrum of manganese?
This would consist of several series of lines corresponding to the energies of electron transitions. They are bright lines for an emission spectrum and dark for absorbtion.
What happens when lithium reacts with potassium hydroxide solution?
There will be no reaction between the lithium and the potassium hydroxide. However, since the potassium hydroxide is in solution, the lithium will still react with the water to form lithium hydroxide and hydrogen gas. 2Li + H2O --> H2 + LiOH.
Which tool would be used to find info on which cations or anions will replace other cations or anions in a chemical reaction?
a reactivity series
Is chromium more reactive than aluminum?
Yes, aluminum is more reactive than chromium. This would be the case in both a reactivity series or electrochemical series. Please see the related link for more information.
What happens with Aluminum and zinc nitrate?
Aluminium would displace zinc as it is higher in the reactivity series. Al + Zn(NO3)2 = Al(NO3)3 + Zn
What element does not rust?
Any element other than Iron (Fe) will not rust, but they will corrode. Element at the bottom of the reactivity series are the best for not corroding, but they are generally very expensive. Any non-metals will not "rust" as metals would. Metals low in the reactivity series are: Platinum (Pt)(lowest), Gold (Au) (2nd Lowest), Silver (Au)(3rd Lowest).
Why is gold not used for sacrificial protection?
Sacrificial protection is only effective if the metal used for sacrificial protection is more reactive than Iron in the reactivity series. Since gold is one of the least reactive metals in the reactivity series, it would not get oxidized in the place of Iron. A more reactive metal than Iron, e.g. Zinc, is used as the Zinc metal would oxidize in the place of iron, thus preventing Iron from rusting.
Image of emission or absorption spectrum of manganese?
This would consist of several series of lines corresponding to the energies of electron transitions. They are bright lines for an emission spectrum and dark for absorbtion.
If copper would have been high up in reactivity series would it still have been a useful metal give reason?
No it wouldn't be. Metals high up in the reactivity series, such as the alkali metals, react with water. Copper metal wouldn't stay a metal for long if it reacted vigorously with water (which is the same reason that lithium, potassium, and sodium and not commonly found in their metallic state). Most metals that react with water are found as dissolved ions, and not as solid metals.See the Related Questions to the left for more information about the reactivity series.
What happens when lithium reacts with potassium hydroxide solution?
There will be no reaction between the lithium and the potassium hydroxide. However, since the potassium hydroxide is in solution, the lithium will still react with the water to form lithium hydroxide and hydrogen gas. 2Li + H2O --> H2 + LiOH.
What would be the word equation be for adding hydrogen gas and zinc sulfate?
hydrogen + zinc sulphate = No Reaction. This is because hydrogen is lower than zinc in the reactivity series and thus cannot displace it
Is reactivity an example of a physical property?
no. that would be a chemical property
Can a house be connected in series circuit?
The breaker panel. Breakers are placed in series with all outlets.
What does 8 US dollars per dmtu imply when refering to price of manganese?
DMTU means dry metric tonne unit. A 'unit' is 10kg, or 1 tonne divided into 100 units. Essentially $8/dmtu is equal to $800/tonne of pure manganese metal. This procing structure is commonly used for manganese ore sales (as opposed to pure manganese metal). A typical manganese ore would grade 45% Manganese so a price per tonne of this 'impure' ore would be 45% of $800/tonne = $360/tonne. More refined ferro-manganese products will command a higher price than the basic manganese ore.
