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Metal activity order table: cesium, rubidium, potassium, barium, strontium, calcium, sodium, lithium, europium, lanthanum, cerium, praseodymium, magnesium (other rare earths), yttrium, scandium, aluminum, manganese, zinc, titanium, chromium, gallium, indium, iron, cadmium, germanium, vanadium, cobalt, nickel, tin, lead, zirconium, molybdenum, niobium, copper, antimony, bismuth, hafnium, rhenium, tungsten, thallium, mercury, silver, ruthenium, palladium, rhodium, osmium, tantalum, iridium, platinum.
Therefore, the order of metal activity after copper and before silver are solid metals such as antimony, bismuth, hafnium, rhenium, tungsten, and thallium.
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The order of metal activity given from the high school level is only Hg between copper and silver, and liquid at room temperature.
But in fact, there are many excessive metal elements in the metal activity order table that are not listed, and these that are not listed may have solid and metal activity orders before copper and silver.
It's just that the activity of these transition metals is not easy to judge, and it is not required in high school.
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Commonly used metal activity sequence table: k ca na mg al zn fe sn pb (h) cu hg ag pt au.
As can be seen from this table, there are no solid metals that meet the requirements.
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It seems to be lead, so I can't remember it clearly.
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To verify the order of activity of iron, copper and silver, take the reaction reaction between iron and copper sulfate, extend the iron wire into the copper sulfate solution, and produce red metal on the surface of the iron wire, indicating that the activity of iron is stronger than that of copper; Then the copper wire is extended into the silver nitrate solution, and there is a silver-white solid precipitation on the copper surface, so fill: the iron wire is extended into the copper sulfate solution, and the red metal is produced on the surface of the iron wire, Fe+CuSO4 = FeSO4 +Cu; The copper wire is stretched into the silver nitrate solution, and there is a silver-white solid precipitation on the copper surface, Cu+2AGnO3 = Cu(NO3)2 +2AG
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The sequence of metal activity is as follows:
The order of metal activity was as follows: potassium K, calcium Ca, sodium Na, magnesium mg, aluminum Al, zinc Zn, iron Fe, tin sn, lead Pb, copper Cu, mercury Hg, silver Ag, platinum Pt, gold Au, and the metal activity decreased sequentially. The buried metal activity sequence table is made of metals according to the strength of metal activity.
The order of metal activity is defined as follows:
It refers to the activity of the metal and represents the reactivity of the metal.
The description of the sequence table of metal activity is as follows:
1) In the periodic table, except for noble gases (formerly known as noble gases), the metallicity of the elements in the periodic table is stronger the lower left and weaker the upper right.
2) The activity of the metal is independent of the intensity of the reaction.
3) The metallicity of the metal decreases from left to right, and the metal on the left can displace the metal on the right from its salt solution.
4) The metal before hydrogen can react with acid and rent out hydrogen, but the metal after hydrogen cannot.
5) Potassium, calcium, and sodium are three metals that are relatively active and can directly react with water to generate hydrogen.
The application of the order of metal activity is as follows:
1.Determine the strength of the metal's activity.
2.Determine whether a metal and an acid can undergo a displacement reaction.
Reaction conditions: The metal in front of the hydrogen can replace the hydrogen in the acid, and the more active the metal, the more intense the reaction.
Acids generally refer to hydrochloric acid and dilute sulfuric acid.
Fe reacts with acid to form ferrous salts.
3.Determine whether the metal and the salt solution have a displacement reaction.
Reaction conditions: The elemental metals in the reactants should be ranked in front of the metal elements in the salt.
The salt in the reactant must be soluble, i.e., a salt solution.
Metals with strong activity such as K, Ca, and Na can react with water in the megasalt solution at room temperature to form alkali, so the metal in the salt cannot be replaced.
Fe reacts with a salt solution to form ferrous salts.
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The order of metal activity refers to the relative activity of various metals in chemical reactions, and is generally arranged according to their ability in the reduction process from strongest to weakest. The following are common metal activity sequences:
1.Potassium (k).
2.Sodium (Na).
3.Calcium (CA).
4.Magnesium (mg).
5.Aluminum (AL).
6.Zinc (Zn).
7.Iron (Fe).
8.Nickel (Ni).
9.Tin (sn).
10.Lead (Pb).
11.Hydrogen (h).
12.Copper (cu).
13.Mercury (Hg).
14.Silver (AG).
15.Gold (au).
In the metal activity order table, the metal in front can reduce the ions of the metal in the back, but not vice versa. For example, sodium can reduce silver ions in silver chloride, but silver cannot reduce sodium ions in sodium chloride. This law is widely used in chemical reactions and metallurgical processes.
The following are the equations for the reduction reaction of some of the metals in the metal activity sequence table:
1.Potassium (K): 2K+2H2O 2KoH+H2 (reacts with water).
2.Magnesium (mg): Mg+2HCl MgCl2+H2 (reacts with acid).
3.Aluminium (Al): 2Al+6HCl, 2ALCL3+3H2 (reactive with acid).
4.Zinc (Zn): Zn+2HCl, ZnCl2+H2 (reaction with acid).
5.Iron (Fe): Fe+CuSo4 FeSo4+Cu (reacts with salts).
6.Hydrogen (H): 2H+O2 2H2O (reacts with oxygen volt-sensitive gas).
7.Copper (Cu): Cu + 2ag no3 Cu (No3) 2 + 2ag (reacts with salts).
8.Silver (Ag): 2AG+s AG2S (reaction with non-metal).
The metal activity sequence table can not only be used to measure the reduction reaction between metals, but also can be used for the behavior of metals in various chemical reactions, such as solubility in acids and bases, flammability in oxygen, etc. In addition, metal activity sequence tables are often used in metallurgical and metalworking for process design and optimization to achieve efficient and cost-effective production processes. <>
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Metal Activity Order Table Formula: Potassium, Calcium, Sodium, Magnesium, Aluminum; zinc, iron, tin, lead, hydrogen; Copper, mercury, silver, platinum, gold. Liveliness is ranked from highest to lowest.
1, the ingenious memory mantra "marry that beauty, the body is slender and light, and a total of 100 envy and concessions". 2. It reacts with acid, it is difficult to carry out after hydrogen, and hydrochloric acid and sulfuric acid are commonly used for dilute acid. 3. React with salt solution, the former gold is replaced with the latter gold, and the salt needs to be dissolved in water.
4. In special circumstances, it should be remembered that elemental iron becomes ferrous salt, potassium, calcium and sodium, which is not feasible.
Metal activity refers to the tendency of metal elements to lose electrons in aqueous solution to form metal cations, which belongs to the category of thermodynamics. Using metal activity, it is possible to compare the reducibility of a metal in water (but not in other environments or dry states) with the oxidation of its corresponding cations, and the direction of a series of displacement reactions in water.
The order of metal activity refers to the degree of activity of the metal, which represents the reactivity of the metal. As for the ease of the reaction, it belongs to the application. In the table of metal activity sequences, the lower the general position, the weaker the metallicity, and the weaker the reduction of atoms. The earlier the metal, the stronger the metallicity and the more reducible the atoms.
In chemistry, the chemical activity of a metal can be judged according to the order of its activity, and the higher the position of the metal in the order of metal activity, the more likely it is to lose electrons and become ions in the aqueous solution, and the stronger its activity.
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Choice B because copper can be replaced by iron in copper chloride solution, and copper cannot be replaced by silver in copper chloride solution. Iron is liver than copper, and copper is liver than silver.
I don't choose a because.
The activity of ferric ions is different from that of iron.
In the order of elemental activity, the active type of ferric ions is ranked after copper.
This will lead to errors in the experiment!
If you change the ferric chloride solution in the title to ferrous chloride solution, you can rat.
Hand hit. Give points!!
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Select d2hg(no3)+cu=cu(no3)2+2hg
Mercury nitrate does not react with copper, and there is no obvious phenomenon.
f>o>cl>n>br>i>s>c>se>te>at>h>p>as>b>si
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