chemical equations contain important information about the amount of reactants required to produce given products. These amounts are represented by ____________________. Coefficients Solutions (10 marks) 5. A ____________________ is defined as a mixture of two or more substances that are evenly distributed. Solution 6. The shape of the water molecule‚ combined
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allowing for there to be a electrical current. Because elcetroyltes can not conduct electrical currents in there solid form they are put in a solution to dissociate. The purpose of Lab 32 was to determine the effect that the concentration of a solue has on the conductivity of an electrolytic solution. If NaCl is added to water to create an electrolytic solution then it will create a stronger electrical current than distilled water because NaCl is a strong electrolyte that can conduct electricity well
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Data and Observations: Part I Table: Metal: | Aluminum | Zinc | Iron | Copper | Mass of metal: | 27.776 g | 41.664 g | 34.720 g | 41.664 g | Volume of water in the calorimeter: | 26.0 mL | 26.0 mL | 26.0 mL | 26.0 mL | Initial temperature of water in calorimeter: | 25.3 °C | 25.3 °C | 25.3 °C | 25.3 °C | Temperature of hot water and metal in hot water bath: | 100.5 °C | 100.5 °C | 100.5 °C | 100.5 °C | Final temperature reached in the calorimeter: | 38.9 °C | 34.8 °C | 34.2 °C | 34
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with it. The metal threads were twisted‚ doubled or wrapped around some other thread such as cotton. With the advancement of technology‚ metal/conductive textiles found extensive functional applications. These materials have high electrical conductivity and radar reflecting property‚ yet are lightweight and flexible. Various methods have been developed to coat fibers and textile materials by metals. » sputter coating » coating metal powder with binders » electro less coating » vacuum deposition
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electrical conductivity of electrolytes and non-electrolytes activity demonstrated the physical propertiesand the conductivity of some solution. Electrical conductivity apparatusare dipped into a liquid in a beaker. Whenthe liquid contains significant concentrations of ions‚ the ions more between the electrodes to complete the circuit(which includes a light bulb).Tapwater and distilled water are examples of non-electrolytes. A solution of a weakelectrolytes‚ acetic acid (CH3COOH)‚ 5% sucrose solution; it
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charts can give good estimates on these values they are unable to give completely valid answers. This is because when measuring the current carrying capacity you must also consider: voltage drop‚ insulation temperature limit‚ thickness‚ thermal conductivity‚ and air convection and temperature. The fusing current for a wire
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Solution Focused Therapy for Children Rhonda Kendrick December 11‚ 2014 Solution-focused therapy has a unique orientation toward non-problem times. The purpose is to help people target and amplify resources and strengths toward change (Berg‚ 1994). The article that I researched is about a study of using the framework of solution focused therapy with children. Children were referred by the study for presenting problems involved those relating to “behavior‚” such as aggression toward
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12/10/2014 NCERT Solutions for Class 11th Chemistry: Chapter 1 - Some basic Concepts of Chemistry NCERT Solutions for Class 11th Chemistry: Chapter 1 – Some basic Concepts of Chemistry August 6‚ 2014 by Anand Meena<http://schools.aglasem.com/?author=1> Chemistry Coaching @ Rs 0 Study Chemistry‚ Physics & Maths Register Now & Access Free Material NCERT Solutions for Class 11th Chemistry Chapter 1 – Some basic Concepts of Chemistry National Council of Educational Research and Training (NCERT) Book
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more dilute the solution‚ the further apart the molecules. As the molecules spread‚ the color that is reflected becomes less intense because some of the wavelengths are able to pass through the solution without encountering any of the solute. The more wavelengths that are able to pass through a solution without encountering any of the solute‚ the greater the transmittance. The transmittance can be mathematically calculated by dividing the amount of light that exited the solution (IT) by the amount
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Crystal making lab Purpose: To better understand saturated solutions‚ solubility . Analysis: 2. Why was it necessary to heat the water? Be specific. Heating the water allows it to hold much more borax in solution than it could at room temperature. So after the water cooled‚ the ability of the solution to hold the solute inside decreases‚this causes the excess borax in the solution to precipitate in crystal form on the string.When the water at a high temperature‚ water molecules have more kinetic
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