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How called If more reactive metal takes place of a less reactive metal in a compound?
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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.
Copper cannot displace zinc from its salt solution?
because in table of re-activity of metals it is below zinc
What would be the cathode in a magnesium and zinc galvanic cell?
In a galvanic cell, the less reactive metal is the cathode, where oxidation takes place. In this case the cathode is zinc.
What is brisk effervescence?
When Carbon dioxide bubbles come out of a compound after the reaction takes place, it is called brisk of effervesence.
Reaction between an acid and a metal?
Usually, an acid reacts with a metal to form a metal salt and hydrogen. However this depends if the metal is reactive or not. For example, magnesium, (Mg) is a violently reactive metal to hydrochloric acid; therefore, making magnesium chloride and hydrogen: Magnesium+Hydrochloric acid=Magnesium chloride+Hydrogen Also, if an experiment takes place, between a metal and a acid, bubbles will appear showing hydrogen. But remember, only with reactive metals! However, if the metal is nonreactive it will not react with dilute acids such as;sulfuric acid, hydrochloric acid and nitric acid. Take copper for example. Copper is nonreactive to dilute acids. However, a brief reaction still takes place, but not all the copper will react. When the reaction takes place a layer of either copper sulfate, copper chloride, or copper nitrate will form between the dilute acid and the copper. Not all the copper has reacted, (only a layer). This layer with the remaining copper is insoluble in water, and quickly forms a coating around the copper which prevents further attacks from acids. You can also know if metals are nonreactive or reactive, by looking at the reactivity series. They go in order starting with the most reactive. Most reactive 1. Potassium2. Sodium3. Calcium4.magnesium5.aluminum6.Zinc7.Iron Least reactive 8. Tin 9. Lead 10. Copper 11. Silver 12. Gold 13. Platinum
What term describes a more reactive element taking the place of a less reactive element?
The more reactive substance is known as a catalyst.
Will a reaction take place if zinc is put in calcium nitrate?
no because copper is a less reactive metal
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.
How does sacrificial protection work?
Sacrificial protection is basically attaching a piece of metal that is more reactive that iron to the object made of iron. This more reactive metal, commonly magnesium or zinc, will corrode in the place of iron. That is, the more reactive metal will feed the iron with electrons each time the iron is oxidised to form iron ions, thus reverting it to iron once again instead of letting it become iron hydroxide (rust). Thus, the more reactive metal is sacrificed for the iron.
Copper cannot displace zinc from its salt solution?
because in table of re-activity of metals it is below zinc
What is Sacrafical protection of iron nails?
Sacrificial protection is a method to prevent the corrosion of iron, also known as rusting.Sacrificial protection is basically attaching a piece of metal that is more reactive that iron to the object made of iron. This more reactive metal, commonly magnesium or zinc, will corrode in the place of iron. That is, the more reactive metal will feed the iron with electrons each time the iron is oxidised to form iron ions, thus reverting it to iron once again instead of letting it become iron hydroxide (rust). Thus, the more reactive metal is sacrificed for the iron. This is a common method used to prevent rusting of large steel objects such as underground pipes, oil tankers or ships.n
What is a metal compound formed when a reaction takes place with an acid?
A salt or a hydroxide are obtained.
Chlorine is a very reactive nonmetals?
Yes!!! Agreed Chlorine gas is a very reactive non-metal. Fluorine, which is in the same group is even more reactive non-metal. Fluorine is often nicknamed the 'Tyrannosaurus Rex' of the elements, because of its high degree of reactivity. In the lab. take a gas jar full of chlorine, and place a pellet of sodium metal in it. They will immediately react to form sodium chloride (NaCl) common table salt.
When a chemical reaction takes place the compound formed is called the?
product
From an elements place in the Periodic Table can you make predictions as to how it will react when placed with another element?
YES.If it is in group 1 it will be the most reactive metal and would react.But if it is in group 8
What would be the cathode in a magnesium and zinc galvanic cell?
In a galvanic cell, the less reactive metal is the cathode, where oxidation takes place. In this case the cathode is zinc.
What is the machine that holds metal in place called?
There is more than one way to hold metal in place - it can be welded, clamped, glued, etc. - but you are probably thinking of a vice.
