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Aug 19, 2013 · Favorite Answer Brass is an alloy [mixture] of copper and zinc so I expect homogeneous mixture for this Air is a homogeneous mixture of gases. but copper is not a mixture as it is an element, there... A chemist wants to extract copper metal from copper chloride solution. The chemist places 1.50 grams of aluminum foil in a solution of 14 grams of copper (ll) chloride. A single replacement reaction takes place.

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Many alloys are homogeneous mixtures of metals, or of a metal and a nonmetallic substance. Bronze, which is made from copper and tin, is an example of the first kind of alloy. Steel, made from iron and carbon, is an example of the second. Plastics are some of the world's most important homogeneous mixtures. The discovery that certain mixtures ...

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Ch. 1 - What is the difference between homogeneous and... Ch. 1 - Classify the following mixtures as homogeneous or... Ch. 1 - Classify each of the following as a mixture or a... Ch. 1 - Suppose a teaspoon of magnesium filings and a... Ch. 1 - If a piece of hard, white blackboard chalk is... Ch. 1 - During a very cold winter, the temperature may... The results showed that the sintered samples experienced an isotropic shrinkage around 17% with relatively homogeneous dispersion of MWNTs in the copper matrix which is expected to enhance the ...

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Mixtures are essentially an amalgamation of different elements in which no chemical reaction occurred. This is the key difference between compounds and mixtures, in addition to the fact that it is easy to separate a mixture into its individual parts. More information can be found at the following link: The air breathed is a homogeneous mixture of oxygen, nitrogen, argon, and carbon dioxide, along with other elements in smaller amounts. Because each layer of the Earth’s atmosphere has a different density, each layer of air is its own homogeneous mixture. 2. Alloy mixtures. These are some of the most important mixtures and are strong metals.

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However, almost any gas, liquid, or solid can act as a solvent. Many alloys are solid solutions of one metal dissolved in another; for example, US five-cent coins contain nickel dissolved in copper. Air is a gaseous solution, a homogeneous mixture of nitrogen, oxygen, and several other gases. Jun 26, 2019 · The homogeneous mixture is the combination of two or more pure substance in such a uniform manner that each of the substance is indistinguishable from the other substance. On the other hand, the pure substances in the heterogeneous mixtures are not uniformly distributed and it results in the formation of non-uniform composition.

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Jul 16, 2008 · A solution is a homogeneous mixture of two or more substances with each substance retaining its own chemical identity. The solvent is the part of the solution that is present in the greatest amount (like water) and the solute is the part that is present in a lesser amount (like salt) which, when combined, form the solution (salt water). Most natural and synthetic substances are mixtures. For example: Steel is a mixture of iron and carbon, and rocks are a mixture of various metal elements such as nickel, iron, and copper. Mixtures exist in all three phases of matter (solid, liquid, and gas). Some mixtures have molecules in all three states.

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Answer: Examples of pure substances that are crystals include salt, diamond, protein crystals, and copper sulfate crystals.. Examples of homogeneous mixtures include vegetable oil, honey, and air. H 2 O 2 (5 ml, 30%) was then added to this mixture and stirred at room temperature for 2 h. This mixture was then transferred to a 70 ml Teflon-lined stainless-steel autoclave and placed in an oven for 72 h at 175 °C under autogenous pressure. The resulting solid was washed with deionised water and dried at 40 °C for 16 h in a vacuum oven.

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(c) Copper, in the form of malachite ore, is found worldwide. (d) Copper and tin compose bronze alloy. Classify each of the following copper samples as an element, a compound, a homogeneous mixture, or a heterogeneous mixture: (a) copper wire (b) copper oxide … Content Retrieval51. (a) State the main points of difference between homogeneous and heterogeneous mixtures. (b) Classify the following materials as homogeneous mixtures and heterogeneous mixtures. Soda-water, Wood, Air, Soil, Vinegar, Alcohol and water mixture, Petrol and water mixture, Chalk and water mixture, Sugar and water mixture, Copper sulphate solution.All solutions are mixtures B. All solutions are homogeneous C. All solutions contain at least two or more compounds D. ... Achemist wants to extract copper metal from ...

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An alloy is a homogeneous mixture of a metal with other metals or non metal. Eg :- Steel – iron, carbon. Stainless steel – iron, carbon, cobalt, nickel. Brass – copper, zinc. Bronze – copper, tin. Solder – Lead, tin (used for welding electrical wires together) If one of the metals in an alloy is mercury, it is called an amalgam. 1. A metallic solid or liquid that is composed of a homogeneous mixture of two or more metals or of metals and nonmetal or metalloid elements, usually for the purpose of imparting or increasing specific characteristics or properties: Brass is an alloy of zinc and copper.

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Jan 17, 2020 · In contact with the air, a copper pipe becomes green e. When a bar of zinc is submerged in hydrochloric acid, a gas bubbles form this mixture 4. Classify the following mixtures as homogenous or heterogeneous a. Tea b. sugar completely dissolved in water c. Water with sand d. Steel (a mixture of iron and carbon) e. Air 5. A homogeneous mixture is a mixture that is really well mixed. It's so well mixed that you can't see the different parts of the mixture. It all looks uniform. The air that you are breathing right now is a homogeneous mixture. It's made up of several different gasses that are so thoroughly mixed together that they appear uniform. which of the following is an example of a homogeneous mixture A. Bronze B. Zinc C. Copper D. Sand - 3612241

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Which of the following is a homogeneous mixture? A) pure water B) gasoline C) jar of jelly beans D) soil E) copper metal Explore answers and all related questions

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Mixtures contain many different types of substances and are classified as either homogeneous or heterogeneous. Answer and Explanation: Become a Study.com member to unlock this answer! Then further classify the matter (element, compound, homogeneous mixture, heterogeneous mixture) Description 1. Chocolate syrup is added to milk and stirred 2. Copper metal (used to make wires) 3. Sand is added to water 4. Distilled water 5. Tap water Pure Substance or Mixture? Mixture Pure substance Mixture Pure substance Mixture Classification? Sterling silver is an alloy of silver and another metal (usually copper). The alloy is a mixture of the 2 metals, not a compound. To be called sterling silver it needs to have at least 92.5 ...

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Brass is an example of an alloy, being a homogeneous mixture of copper and zinc. Another example is steel, which is an alloy of iron with carbon and possibly other metals. The purpose of alloying is to produce desired properties in a metal that naturally lacks them. Brass, for example, is harder than copper and has a more gold-like color. Remember solutions are homogeneous mixtures in which each part of the solution has the same composition. A solution can be colored (such as a blue copper sulfate solution) but it is always clear . Clear means that the solution is transparent, not cloudy, turbid, translucent, or opaque.

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Apr 13, 2020 · One example of a mixture is brass, which can contain varying quantities of copper and zinc. The element copper has an atomic number of 29, and it is a metal. It is a member of group 11 on the periodic table. Copper and its alloys are used to make many common items, including water pipes, jewelry, screws and ornamental objects. In the industrial extraction of lead metal, the ore is first roasted in a furnace. (Solved) In the industrial extraction of lead metal, the ore is first roasted in a furnace. The solid mixture obtained is then fed into another furnace together with coke, limestone and scrap iron. State the function of each of the following in this process: a) Coke

copper is an ELEMENT therefore it is not a heterogeneous OR homogeneous mixture.

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Bronze is a homogeneous mixture of copper and tin. It’s a mixture (not a compound) because the proportions of copper and tin aren’t exactly the same in all bronze. Mixtures of metals are called alloys. Steel is an alloy made by mixing a little carbon, and sometimes other elements, into iron.

Two or more pure substances combined in any of a wide range of possible ratios is a mixture. A homogeneous mixture is uniform throughout, while a heterogeneous mixture has visible transitions from one component of the mixture to another (interfaces). ... A sample of copper metal (c = 0.385 J/g*K) is heated to an initial temperature of 96.9 ...Oct 12, 2020 · Old-fashioned solders contain a mixture of tin (50-70%), lead (30-50%), copper, antimony, and other metals. Newer solders dispense with lead for safety reasons. A typical modern solder has 99.25 percent tin and 0.75 percent copper. Jun 22, 2017 · 1. An example of a liquid metal and a liquid non-metal is (a) gallium, mercury (b) mercury, chlorine (c) mercury, bromine (d) bromine, sulphur. 2. Which out of the following is a heterogeneous mixture? (a) air (b) brass (c) iodised table salt (d) steel. 3. Brass is an example of a (a) homogeneous compound (b) homogeneous mixture (c ... Findagrave illinoisMany alloys, such as brass (made from zinc and copper) and sterling silver (made from silver and copper), are solid solutions in which the atoms of two or more metals are uniformly mixed. By properly choosing the proportions of each metal in the alloy, many desirable properties can be obtained. For example, alloys can have more strength and greater .

Mixtures are essentially an amalgamation of different elements in which no chemical reaction occurred. This is the key difference between compounds and mixtures, in addition to the fact that it is easy to separate a mixture into its individual parts. More information can be found at the following link:
Homogeneous mixtures include -colloids, solutions, and suspensions-FALSE SOLUTIONS. ... Using oxygen to separate molten copper sulfide into copper and sulfur dioxide is a -physical- change. ... B. feel slippery D. corrode metal. D. corrode metal. All of the following are examples of physical changes except_____.