COMPARE AND CONTRAST
Gold is a chemical element in the periodic table that has the Au symbol (Latin: 'aurum') and atomic number 79. A transition metal (trivalent and univalent) is soft, shiny, yellow, heavy, "malleable", and "ductile". Gold does not react with other chemicals but is attacked by chlorine, fluorine and aqua regia. This metal is found in many gold nuggets or powders in rocks and in alluvial deposits and one of the coinage metals. The ISO code is XAU. Gold melts in liquid form at a temperature of about 1000 degrees Celsius.
Gold is a soft and malleable metal, its hardness ranges from 2.5 to 3 (Mohs scale), and its density depends on the type and content of other metals that combine with it. Gold-carrying minerals are usually associated with mineral minerals (gangue minerals). Such minerals are generally quartz, carbonate, tourmaline, flourpar, and small amounts of nonmetallic minerals. Gold carrier minerals are also associated with oxidized sulphide deposits. Gold carrier minerals comprise of nativ gold, elektrum, gold of an egg, a mixture of alloys and gold compounds with sulfur, antimony, and selenium elements. Elektrum is actually another type of nativ gold, only silver content in it> 20%.
Gold is formed from the process of magmatism or concentration on the surface. Some deposits are formed by contact metasomatism and hydrothermal solutions, while mechanical concentrations produce placer deposits. Gold genesis is categorized into two:
a.Primary sediment
b.Placental precipitate.
Monetary gold as collateral currency ever used by Bank Indonesia
Gold is used as a financial standard in many countries and is also used as jewelry, and electronics. The use of gold in the field of monetary and finance based on the absolute monetary value of gold itself against various currencies around the world, although officially on the world commodity exchanges, the price of gold is included in US dollar currency. The use of gold in the monetary field is usually a bulion or gold bars in various units of gram to kilogram weight.
1.3 Compare and contrast Al with Au
Compare:
1. Conductor
2. Easy to force
3. Intangible solid
4. Corrosion resistant
Contrast:
a. Aluminium
1. The atomic number 13
2. Colored white
3. Strong reductor agent
4. The numbers are plentyin nature
b. Aurum
1. The atomic number 79
2. Colored metallic yellow
3. Strong oxidizing agents
4. The amount is a bit in nature
1.4 Double Bubble Maps
Map to declare compare Al and Au in the center, while the contrast on Al is on the left and Au is on the right.
1. DEFINITION COMPARE AND CONTRAST
Compare to express the equation between two objects. In chemistry, we compare the two elements to see the similarities.
Contrast to express the difference between two objects. In chemistry, we make the distinction between two elements.
Here will be discussed compare and contrast between aluminum elements with aurum element.
1.1 Alluminium
Aluminum is a chemical element. Aluminum symbol is Al, and its atomic number 13. Aluminum is the most abundant metal. Aluminum is not a heavy metal type, but is an element that accounts for about 8% of the earth's surface and the third most abundant. Aluminum is found in the use of food additives, antacids, buffered aspirin, astringents, nasal sprays, antiperspirants, drinking water, car exhaust, tobacco smoke, aluminum foil, cookware, cans, ceramics, and fireworks.
Aluminium is a good electricity conductor. Light and strong. Is a good conductor also make heat. Can be forged into sheets, pulled into wires and extruded into bars with various cross sections. Corrosion resistant. Alumunium used in many things. Most of it is used in high-voltage cables. Also widely used in window frames and airframe bodies. Found at home as a pot, soft drink bottle, milk bottle cap and so on. Aluminum is also used to coat car lights and compact disks.
1.2 Aurum
Compare to express the equation between two objects. In chemistry, we compare the two elements to see the similarities.
Contrast to express the difference between two objects. In chemistry, we make the distinction between two elements.
Here will be discussed compare and contrast between aluminum elements with aurum element.
1.1 Alluminium
Aluminum is a chemical element. Aluminum symbol is Al, and its atomic number 13. Aluminum is the most abundant metal. Aluminum is not a heavy metal type, but is an element that accounts for about 8% of the earth's surface and the third most abundant. Aluminum is found in the use of food additives, antacids, buffered aspirin, astringents, nasal sprays, antiperspirants, drinking water, car exhaust, tobacco smoke, aluminum foil, cookware, cans, ceramics, and fireworks.
Aluminium is a good electricity conductor. Light and strong. Is a good conductor also make heat. Can be forged into sheets, pulled into wires and extruded into bars with various cross sections. Corrosion resistant. Alumunium used in many things. Most of it is used in high-voltage cables. Also widely used in window frames and airframe bodies. Found at home as a pot, soft drink bottle, milk bottle cap and so on. Aluminum is also used to coat car lights and compact disks.
1.2 Aurum
Gold is a chemical element in the periodic table that has the Au symbol (Latin: 'aurum') and atomic number 79. A transition metal (trivalent and univalent) is soft, shiny, yellow, heavy, "malleable", and "ductile". Gold does not react with other chemicals but is attacked by chlorine, fluorine and aqua regia. This metal is found in many gold nuggets or powders in rocks and in alluvial deposits and one of the coinage metals. The ISO code is XAU. Gold melts in liquid form at a temperature of about 1000 degrees Celsius.
Gold is a soft and malleable metal, its hardness ranges from 2.5 to 3 (Mohs scale), and its density depends on the type and content of other metals that combine with it. Gold-carrying minerals are usually associated with mineral minerals (gangue minerals). Such minerals are generally quartz, carbonate, tourmaline, flourpar, and small amounts of nonmetallic minerals. Gold carrier minerals are also associated with oxidized sulphide deposits. Gold carrier minerals comprise of nativ gold, elektrum, gold of an egg, a mixture of alloys and gold compounds with sulfur, antimony, and selenium elements. Elektrum is actually another type of nativ gold, only silver content in it> 20%.
Gold is formed from the process of magmatism or concentration on the surface. Some deposits are formed by contact metasomatism and hydrothermal solutions, while mechanical concentrations produce placer deposits. Gold genesis is categorized into two:
a.Primary sediment
b.Placental precipitate.
Monetary gold as collateral currency ever used by Bank Indonesia
Gold is used as a financial standard in many countries and is also used as jewelry, and electronics. The use of gold in the field of monetary and finance based on the absolute monetary value of gold itself against various currencies around the world, although officially on the world commodity exchanges, the price of gold is included in US dollar currency. The use of gold in the monetary field is usually a bulion or gold bars in various units of gram to kilogram weight.
1.3 Compare and contrast Al with Au
Compare:
1. Conductor
2. Easy to force
3. Intangible solid
4. Corrosion resistant
Contrast:
a. Aluminium
1. The atomic number 13
2. Colored white
3. Strong reductor agent
4. The numbers are plentyin nature
b. Aurum
1. The atomic number 79
2. Colored metallic yellow
3. Strong oxidizing agents
4. The amount is a bit in nature
1.4 Double Bubble Maps
Map to declare compare Al and Au in the center, while the contrast on Al is on the left and Au is on the right.
Give me an example about primary sediment!
BalasHapusOk Wulan. I wiil answer.
Hapus1.Pneumatolitik
The process of chemical reactions of gases and liquids from magma in environments close to magma. These contact minerals may occur when hot steam with high temperatures of contact magma with reactive wall rocks. Contact minerals formed include: wolastonite, amphibol, quartz, epidote, garnet, actinolite, etc.
2. Hydrothermal
Hydrothermal is the aqueous magma remnant solution as a result of magma differentiation. This hydrothermal is rich in relatively light metals, and is the largest source (90%) of the sediment formation process. Based on the precipitation form, two hydrothermal deposits are known:
• Cavity filing, filling openings (opening-opening) that already exist in the rock.
• Metasomatism, replacing existing elements in rocks with new elements of hydrothermal solution.
Hii santa ,, I'm Novi, want to ask you, Why the two elements can easily be resistant and corrosion resistant? Explain to me
BalasHapusI will answer, Because the aluminum metal surface has a strong oxide thin layer, this thin layer can protect the aluminum metal against air, in that the thin oxide layer is strong enough to retain oxygen so no further oxidation (corrosion event) occurs. Besides not being able to react with air, aluminum metal also can not react with water because of this thin oxide film.
HapusIn chemistry, precious metals are metals that are resistant to corrosion or oxidation. So Au (gold) is one of the noble gas elements.
Mention the use of gold?
BalasHapusOk Laras.I will reply, The main use (utilization) of gold is for monetary funds are manifested in the form of a bulion as a reserve for each banknote issued. Because of its softness so easily malleable, gold is used as jewelry. Gold alloys with other metals such as copper, silver, nickel, or palladium make the term white, green, and yellow gold in the world of jewelry. Gold is also used as a coating material, decorations on glass and ceramics, gilding materials, book bindings, script, and other decorations. In addition, gold is also required as an ingredient in the chemical industry, glass making and dentistry
HapusPlease describe in more detail the differences in physical properties of Au and Al!
BalasHapusPhysical properties of Au
Hapus1. Solid phase
2. Melting point 1337.33 K (1064,18 ° C, 1947,52 ° F)
3. Boiling point 3129 K (2856 ° C, 5173 ° F)
4. Density approaching s.k. 19.30 g / cm3
5. When liquid, on t.l. 17.31 g / cm3
6. Heating heat of 12.55 kJ / mol
7. Heat evaporating 324 kJ / mol
8. Molar calority capacity 25.418 J / (mol.
The physical properties of Al
1. Solid phase
2. Melting point 933.47 K (660.32 ° C, 1220.58 ° F)
3. Boiling point 2792 K (2519 ° C, 4566 ° F)
4. Density approaching s.k. 2.70 g / cm3
5. When liquid, on t.l. 2.375 g / cm3
6. Heating heat of 10.71 kJ / mol
7. Heat of evaporation 294.0 kJ / mol
8. The molar calorific capacity of 24,200 J / (mol · K)
how the process of aluminum?
BalasHapusRefining Process of Aluminum Refinery
HapusThe first person who managed to separate aluminum from the compound was Orsted in 1825 by reducing aluminum chloride, but not yet in pure state. Pure aluminum was invented by Wohler in the form of a gray powder in 1827 by modifying the Orsted process.
Now the process used to obtain aluminum is massively used Hall-Heroult process. This method was discovered by two people of the same age (23 years) but in different places namely Charles Martin Hall in America and Heroult in Paris in 1886. This process made these two people rich in a short time and died in the same year ( 1914). Once found this way the price of aluminum is initially very expensive down drastically.
Aluminum making takes place in two stages:
1. The Bayer process is a process of purifying bauxite ore to obtain aluminum oxide (alumina), and
2. The Hall-Heroult process is a process of smelting aluminum oxide to produce pure aluminum.
What is the difference that is easy to see with the eyes on aluminum and gold?
BalasHapusGold: has a soft nature, and has a bright yellow color that is used for jewelry or elktronik gadgets
HapusAluminum: metal with a silvery-white color that has lightweight and corrosion-resistant properties (rust)
What do you think is the uniqueness of aluminum and aurum?
BalasHapusAluminum is an essential element found in the earth's crust and is widely used in home furnishings. While gold has an expensive value when traded.
HapusAs aluminum, whether aurum can be used as equipment that can be used in everyday life other than as jewelry .. ??
BalasHapus