Q: 1. Define physical and chemical properties, provide three examples of each, discuss their…
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Q: What type of pure substance can be decomposed chemically into other pure substances? O compound O…
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Q: Classify each change as physical or chemical. (a) the explosion of gunpowder in the barrel of a…
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A: If a matter is uniform throughout and can not be separated into other substances by physical means,…
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Q: differentiate between homogeneous and heterogeneous mixture?
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A: In a homogeneous mixture, the components completely mix with each other and the composition is…
Q: which is an example of a mixture
A: Mixtures are the combination of two or more substances and they are not chemically combined.
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Q: How do physical properties and chemical properties differ?
A: How the physical and chemical properties differ has to be given.
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A: Gasoline is obtained as a product in the distillation of crude oil.
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A: A compound is a material formed by chemically bonding two or more elements. In any compound,…
Q: What are heterogeneous mixtures?
A: Mixture are are formed by mixing two or more substances without undergoing chemical change. Mainly,…
Q: Differentiate between Mixtures and Compounds?
A: A mixture is a combination of two or more substances that can be mixed together in any proportion.…
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A: Matter is a substance which has definite volume,mass. Matters are classified in various types.…
Q: differences between a compound and mixture
A: When two or more elements are present together they are called compounds. Mixtures are made up of…
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A: A mixture is a material containing two or more elements or compounds that are in close contact and…
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A: Given : A mixture of copper and tin, commonly called bronze is a homogeneous mixture.
Q: What are the different techniques for separating mixtures?
A: The different techniques to separate mixtures in laboratory are as follows:
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Q: What is the difference between a physical property and a chemical property?
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- Give an example of a mixture in which solute is solid and solvent is liquid.Write the balanced chemical equation for the neutralization reaction that occurs when an aqueous solution of hydrobromic acid (HBr) is mixed with an aqueous solution of lithium hydroxide (LIOH). Indicate the physical states of the reactants and products using the abbreviations (s), (1), (g), or (aq) for solids, liquids, gases, or aqueous solutions, respectively. Express your answer as a chemical equation. • View Available Hint(s) ΑΣφ ?(a) The sodium ion did not take part in this chemical reaction(Diluted H2SO4(aq) versus NaOH(aq)). What do we call such an ion?(b) Draw a simple diagram which shows how the sodium ion mixes with water in solution.What do we call this physical process?
- 7. Suppose you make a solution that contains 17.59 g of sodium chloride and 960 g of water. (a) What is the mass % of sodium chloride? (b) If 16.47 mL of your solution weighs 16.651 g,what is the density (in g/cc)?A sample of an ethanol-water solution has a volume of 54.4 cm^3 and a mass of 49.9 g. What is the percentage of ethanol (by mass) in the solution? (Assume that there is no change in volume when the pure compounds are mixed.) The density of ethanol is 0.789 g/cm^3 and that of water is 0.998 g/cm^3.5 Water is evaporated from the magnesium chloride solution. The resulting solid is melted at 700°C and decomposed by passing electric current through it. (a) What is the name of the physical change that occurs first in the magnesium chloride? (b) Write the balanced chemical equation for this step. (c) Identify the type of chemical reaction.
- Mixtures are created by physical means (mixing a substance with another; no chemical bonding); if so, can they be separated only by physical means?You heat 2.53 grams of metallic mercury in air, which produces 2.73 grams of red-orange residue. Assume that the chemical change is the reaction of the metal with oxygen in the air. What is the mass of oxygen that react? When you strongly heat the red- orange residue, it decomposes to give her back the mercury and release the oxygen, which you collect. What is the mass of oxygen you collected?3. The following shows a chemical reaction between carbon dioxide and water to form carbonic acid: carbon dioxide + water > carbonic acid COo + H20 > H;CO; Based on the given chemical reaction as an example, demonstrate the hierarchy of organization in the chemical context of life. Your answer must include the levels of organization, specific examples and the key words: matter, particles, atoms, elements, molecules and compounds.
- A geochemist measures the concentration of salt dissolved in Lake Parsons and finds a concentration of 69.32 g.L The geochemist also measures the concentration of salt in several nearby non-isolated lakes, and finds an average concentration of 5.02 g⋅L¯¹. Assuming the salt concentration in Lake Parsons before it became isolated was equal to the average salt concentration in nearby non-isolated lakes, calculate the percentage of Lake Parsons which has evaporated since it became isolated. Be sure your answer has the correct number of significant digits.Soft wood chips weighing 17.2 kg are placed in an iron vessel and mixed with 150.1 kg water and 22.43 kg sodium hydroxide. A steel lid seals the vessel, which is then placed in an oven at 250°C for 6 hours. Much of the wood fiber decomposes under these conditions; the vessel and lid do not react.(a) Classify each of the materials mentioned as a substance or mixture. Subclassify the substances as elements or compounds.(b) Determine the mass of the contents of the iron vesselafter the reaction.Which of the following processes require(s) chemical methods? Separating a heterogeneous mixture into pure substances. Distilling a saltwater mixture. Separating a homogeneous mixture into pure substances. Breaking a compound into its constituents elements.