Chapter 5: Solutions‚ Colloids‚ and Membranes Chapter Summary Mixtures and Solutions * A mixture maintains its identity regardless of the proportions of its components. * A mixture can be separated into its pure components through physical separation techniques. * The components are distributed uniformly throughout a homogenous mixture. * The components are not distributed uniformly throughout a heterogeneous mixture. * A solution is composed of a solvent and one or more solutes
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was to make a vertical axis wind turbine (VAWT) that instead of charging a battery‚ would deliver its power directly to an electrolysis apparatus to make hydrogen and oxygen gas. The reason for doing this would be to avoid the complications and expenses of inverters‚ batteries‚ and connecting the turbine to the grid. It would also make hydrogen gas which could power a car‚ a generator‚ or be used as a welding/cutting torch‚ which is what I intended to use it for. That was the idea‚ however I
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between two atoms in which electrons are shared between them. An Example: There is covalent between the oxygen and each hydrogen in (H 2 O). Each of the bonds contains two electrons - one from a hydrogen atom and one from the oxygen atom. Both atoms share the electrons. Combination of silicon and oxygen - The combination of silicon and oxygen is similarly to carbon and hydrogen‚ silicon and oxygen form numerous compounds. They are commonly known as silicates An Example - Beach sand is a good example
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If you heat hydrogen to 10 million degrees‚ it creates energy that stars use to shine. When hydrogen is heated to 10 million degrees‚ a process called nuclear fusion takes place. It creates a new‚ heavier element called helium. Some of the matter in this reaction is covered to pure energy which bursts out
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slowly changes into slightly black colour. That is‚ silver anklet has got Fig. 11.1 Silver Anklet tarnished. Can you guess the reason behind it? It is due to the formation of silver sulphide (Ag2S)‚ as a result of the reaction between silver and hydrogen sulphide in the air. ACTIVITY 11.2 • • Take lead nitrate solution in a beaker Take potassium iodide solution in a test tube.(Both solutions are colourless) Add potassium iodide solution slowly to the lead nitrate solution What do you observe
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daily day life. So let’s start with telling the definitions of them. Starting with acids‚ they are a substance which dissociates in water in order to produce one or more hydrogen ions. Also we can write H+ instead of hydrogen ion. Bases have the same definition‚ although the difference is that it firm hydroxide ions instead of hydrogen ions. We can write OH- instead of hydroxide ion. All alkali is bases but not all bases are alkali. However a base is normally a metal oxide or hydroxide. If the base
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well as much of biological systems; for instance‚ the human body consists of approximately 70% of water‚ and in other biological organisms this figure could even be 95%. This largely relies on the bonding of water‚ whereby two hydrogen atoms bond to one oxygen atom; hydrogen bonding is the strongest intermolecular force due to its high polarity. Hence‚ what is the biological importance of water? Water as a transport medium in plants The properties of water make it an essential molecule to all forms
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of a lot of energy. Stars are powered by nuclear fusion in their cores‚ mostly converting hydrogen into helium (Fusion in Stars‚ 2012). The production of new elements by nuclear reactions is called nucleosynthesis. A star ’s mass determines what type of nucleosynthesis occurs during explosive changes in its life cycles (Fusion in Stars‚ 2012). Nuclear Reactions The smallest stars only convert hydrogen into helium. Medium stars‚ such as our Sun‚ can convert helium into oxygen and carbon.
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Discussion and Scientific Explanations The reaction was conducted using granular tin and hydrochloric acid. This mixture provided both a source of electrons and protons1. The electrons worked as the reducing agent in this mechanism1. Granular tin was chosen over a single plate of tin due to the fact that it would take much more time and effort to fully dissolve a single plate of tin. A plate of tin would be more bonded to each other and less likely to be reactive. With the addition of the concentrated
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specializes in hybrid and alternative fuel vehicles We will examine the following area in this paper: a. Identify product/service b. Market research c. Market SWOTT analysis d. Marketing mix (4 P ’s) e. Implementation of the marketing plan f. Monitor marketing plan g. Control and adjust h. Critique and make recommendations of the marketing plan The team will demonstrate that the popularity of these vehicles present a strong opportunity for a leasing
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