What is the weight of copper and lead, and which is the weight of copper and lead

Lead has a significant ratio. Reference table for specific gravity of commonly used metal materials.

Specific gravity (g cm3).

Gray cast iron White cast iron.

Malleable Cast Iron Industrial Pure Iron.

Steel: Cast steel.

Mild steel (containing carbon) Medium carbon steel (containing carbon.

High carbon steel (1% carbon) High speed steel (9% tungsten).

High speed steel (18% tungsten), stainless steel (13% chromium), pure copper (copper), pure nickel.

Silicon lead. Industrial pure aluminum-zinc sheet.

Zinc anode plate Lead plate.

Tin osmium. Iridium platinum.

Gold tungsten. Tantalum mercury.

Thorium silver. Molybdenum bismuth.

Cobalt cadmium. Niobium, manganese.

Chromium cerium. Antimony zirconium.

Tellurium vanadium. Titanium barium.

Beryllium magnesium. Calcium sodium.

Potassium arsenic. Selenium boron.

Copper density grams cubic centimeters.

Lead density grams cubic centimeters.

Therefore, the same volume should be lead weight.

Question 1: Lead or copper The density of lead is grams per cubic centimeter.

The density of copper is grams per cubic centimeter.

Lead weight in the case of the same volume.

Question 2: In the case of the same volume, the order of the weight density of iron, copper, and lead from large to small is: (lead) > copper) > iron), m= vg, and under the same volume, the weight is also m (lead) > m (copper) > m (iron).

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Question 3: Which specific gravity of non-ferrous metals lead and copper sinks In addition to iron, manganese, and chromium, other metals are considered non-ferrous metals. Lead and copper do not belong to *** and belong to non-ferrous metals.

In non-ferrous metals, there are also a variety of classification methods. For example, according to the specific gravity, the specific gravity of aluminum, magnesium, lithium, sodium, potassium, etc. is less than 5, which is called "light metal", while the specific gravity of copper, zinc, nickel, mercury, tin, lead, etc. is greater than 5, which is called "heavy metal". Like gold, silver, platinum, osmium, iridium, etc., are more expensive, called "***".

Question 4: What is the approximate ratio of specific heat capacity of copper and lead? The specific heat capacity of copper is.

The specific heat capacity of lead is.

Question 5: Lead, copper, Lu and steel are the same large volume Which weight is iron with a small amount of carbon, which is considered as pure iron.

Density: PB>Cu>Fe>Al

Mass volume x density.

The volume is the same Mass: PB>Cu>Fe>Al

Question 6: Which is harder, pure lead or pure copper Pure lead is the softest in metals, with a hardness of 3 on the Mohs scale

Anything else of equal weight.

Copper (cuprum) is a metal element, and the ribbon is also a transition element, the chemical symbol Cu, English copper, atomic number 29. Pure copper is a soft metal, the surface is reddish-orange with metallic luster when it is first cut, and the elemental color is purple-red. Good ductility, high thermal and electrical conductivity, so it is the most commonly used material in cables and electrical and electronic components, and can also be used as a building material, which can form many alloys.

Copper alloys have excellent mechanical properties and very low resistivity, the most important of which are bronze and brass. In addition, copper is also a durable metal that can be used many times without compromising its mechanical properties.

Divalent copper salts are the most common copper compounds, and their hydrated ions are often blue, while chlorine ligands are green, which is the color of minerals such as azurite and turquoise, and has been widely used as a pigment in history. Copper building structures can be corroded to produce patina (basic copper carbonate). The decorative arts mainly used metallic copper and copper-containing pigments.

Copper was one of the first metals used by humans. As early as prehistoric times, people began to mine open-pit copper and use the obtained copper to make **, tools and other utensils, and the use of copper had a profound impact on the progress of early human civilization. Copper is a metal found in the earth's crust and oceans.

The amount of copper in the earth's crust is about 3% to 5% copper in individual copper deposits. Most of the copper in nature exists as a compound, that is, copper ore.

The activity of copper is weak, and the reaction of iron element with copper sulfate can replace copper element. Copper is insoluble in non-oxidizing acids.

The difference between copper alloy and low-lead copper is the easiest way to "wipe the face", use a piece of fine sandpaper to polish it on the identification object, such as the rose red is copper, and the other colors are different types of copper alloys. In order to judge the correctness of the color, you can first find a magnet wire or wire sand to see, which is copper instead of copper alloy. 2. Copper is composed of copper elements alone, and even if other metals are present, they are only present in very small amounts in the state of impurities.

Copper alloy is different, it is an alloy composed of copper and other metals, such as copper-zinc alloy is brass, copper-tin alloy is bronze, beryllium bronze is added to copper, copper-aluminum-iron alloy is aluminum-iron bronze and so on. The application occasions of copper are generally conductive parts, such as busbars, wires and cables, enameled wires, etc. Copper alloys are used in a wide range of applications, from screws and nuts to waveguides, springs, reeds, early zippers, lamps, lighting fixtures, and so on.

Fourth, copper is softer and has a larger elongation, while copper alloy is harder and has a slightly smaller elongation.

Be.

Lead is a metal chemical element with the element symbol Pb, atomic number 82, atomic weight, and is the largest non-radioactive element in atomic weight. Metallic lead is a face-centered cubic crystal. Metallic lead is a corrosion-resistant heavy non-ferrous metal material, lead has the advantages of low melting point, high corrosion resistance, X-ray and ray penetration, good plasticity, etc., is often processed into plates and pipes, widely used in chemical industry, cables, batteries and radioactive protection and other industrial sectors.

Lead is a blue-gray heavy metal. When heated to 400-500, there will be lead vapor escaping to form lead smoke, and lead dust will be emitted in the process of manufacturing lead powder and plates with lead ingots, polluting the air, and when the lead smoke in the air reaches a certain concentration, it is harmful to the human body. Lead is a heavy metal, and if it is exceeded, it can affect all systems throughout the body.

Lead can have an effect on the hematopoietic system, affecting hemoglobin synthesis, and may also induce hemolysis, which may lead to anemia in patients.

The original meaning of heavy metals refers to metals with a specific gravity greater than 5 (generally speaking, metals with a density greater than grams per cubic centimeter), including gold, silver, copper, iron, lead, etc., heavy metals accumulate in the human body to a certain extent, which will cause chronic poisoning. Lead is a silvery-white heavy metal with a blue color, melting point, boiling point 1740 °C, density gram cubic centimeter, specific heat capacity kj (kg·k), hardness, soft texture, and low tensile strength.

Copper is a bit heavier. Change it.

Copper has a relative molecular mass of 65, while steel (which is actually a mixture of a lot of iron and a small amount of carbon and some other metals) has a relative molecular mass of 56 or more, which is not as large as copper.

Steel is an alloy rather than an element, it is iron mixed with carbon, and steel with more carbon will be hard and lack sufficient sensitivity to the number of bridges, and the relative molecular weight will be slightly lighter; Steels with less carbon will be less flexible and less rigid, and their relative molecular mass will be slightly larger, but in general they will not fluctuate too much at the 56 value.

Copper and steel are copper weights. In fact, it should be said: the density of copper is greater than that of steel.

The density of copper is: kilogram meters, and the density of steel is: kilogram meters, so the density of copper filial piety bridge is greater than that of steel, that is, as the saying goes: copper is heavier than steel.

Introduction: Density: is the mass of a substance per unit volume. Density is a property of a substance, and the density of solids and liquids is less affected by temperature and pressure.

Application: Density is one of the characteristics of a substance, each substance has a certain density to roll dust, and the density of different substances is generally different. Therefore, we can use density to identify substances.

The method is to determine the density of the ingenious substance to be measured, and compare the measured density with the density of various substances in the density table, so that you can identify what kind of substance the object is made of.

** Regarding the metallicity of tin and lead.

From the position of the periodic table, lead is more metallic than tin, and in the order of metal activity, lead is ranked after tin, why?

From the perspective of metal structure, the crystal structure of lead is similar to that of metallic copper, which is a face-centered cubic lattice. In gray tin crystals, the arrangement of tin atoms is similar to that of diamond and belongs to the covalent crystal type, so lead is more metallic than tin. In terms of chemical properties, metallicity can be compared from the acidity and alkalinity of the hydrate of its oxide, and the strong metallicity, the alkalinity of its hydrate is stronger, and the acidity is weaker.

Both tin and lead form two classes of hydroxides, R(OH)2 and R(OH)4, which are both amphoteric but differ in their acidity and alkalinity. The alkalinity of R(OH)2 hydroxide is stronger than that of the corresponding R(OH)4 type, but on the contrary, the acidity is weaker and changes in the order of Ge-Sn-Pb.

This also shows that lead is more metallic than tin.

Copper belongs to the transition element and cannot be used with this property, which is used for the main group of elements.