12 Questions Show answers. Question 1. SURVEY. 120 seconds. Q. Grinding a seltzer tablet into powder increases the rate of reaction due to increased. answer choices. concentration. surface area. temperature.

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Why can grinding a solid into a fine powder increase the rate of reaction? The powder has a greater surface area than the solid. Which expression represents a reaction rate? ... In a first-order reaction, how does the rate change if the concentration of the reactant decreases to one-third its original value? A. The rate decreases by a factor of ...

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Why can grinding a solid into a fine powder increase the rate of reaction? Chemical Reactions: Chemical reactions occur when two or more reactive substances are …

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Hence, the rate of a reaction between two phases depends to a great extent on the surface contact between them. A finely divided solid has more surface area available for reaction than does one large piece of the same substance. Thus a …

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Compare the rates at which the samples dissolve. The results of your experiments should confirm that, as a general rule, the rate at which a solid will dissolve in water can be increased in three ways:-- · by grinding the solid into a finely divided condition; · by shaking the solution while the solid is dissolving; · by warming the solution.

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The surface area of the cube can be increased by dividing the cube into smaller cubes. Surface area is maximized when a single large cube is crushed to fine powder. The rate of reaction of a solid substance is related to its surface …

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and the rate of the chemical reaction increases. You can increase the surface area of a solid by breaking it down into smaller pieces (see also nanoparticles). A solid that is broken down into a powder has the largest …

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PARTICLE SIZE OF SOLID REACTANTS Reaction depends on collisions. If a reactant is a solid, grinding it into smaller particles will increase the surface area. The more surface area on which collisions can occur, the faster the reaction. TEMPERATURE Usually, an increase in temperature causes an increase in the reaction rate.

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The rate of chemical reactions that involve solids depends on the particle size of the solid. A finely powdered solid has a larger surface area than an equal mass of a coarsely powdered solid. A larger surface area is a much easier target for colliding molecules. The bigger the target, the easier it is to hit.

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Here are two of the most common powder mixing challenges, and advice on how to solve them. 1. Air incorporation and foaming. The challenge: One of the main challenges in mixing powders with liquids is how to prevent unwanted air and …

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When the temperature of a reaction increases, the rate of reaction increases. This can be explained using the collision theory, as below. (a) An increase in temperature will cause the kinetic energy of the reacting particles to increase. (i) The reacting particles move faster and collide more often with one another.

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Why does grinding solid crystals increase the rate of dissolving in water? By grinding the crystals, the surface area of the solute is increased manifold. The finer the powder of the solute is the greater is its surface area which comes in contact with water molecules (molecules of solvent) thereby enhancing interaction with the solvent […]

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The process of grinding or breaking a substance tends to increase the surface area of the substance. When the surface area increases, there is a better chance for reactants to react and form product. Hence, the more the surface area, the more will be the reaction rate. The increase in surface area causes the substance to collide with more force ...

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Hence, the rate of a reaction between two phases depends to a great extent on the surface contact between them. A finely divided solid has more surface area …

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Why can grinding a solid into a fine powder increase the rate of reaction? a) The powder is more concentrated than the solid. b) The powder has a lower density than the solid. c) The powder has a greater surface area than the solid.

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The nature of the solvent can also affect the reaction rates of solute particles. For example, a sodium acetate solution reacts with methyl iodide in an exchange reaction to give methyl acetate and sodium iodide. (13.1.3) C H 3 C O 2 N a ( s o l n) + C H 3 I ( l) → C H 3 C O 2 C H 3 ( s o l n) + N a I ( s o l n)

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As the pressure of the reactants increase, so does the reaction rate. ... The zinc solid could be ground into a fine powder to increase its surface area. The (text{HCl}) concentration could be increased. Rates of reaction. Textbook …

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The rate of a chemical reaction is increased when the surface area of a solid reactant is increased. This can be done by cutting the substance into small pieces, or by grinding it into a powder. If the surface area of a reactant is increased, it …

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Why does grinding a solid reactant down into smaller lumps increase the rate of a reaction? (2/3 marks) As grinding down the solid increases the exposure of particles on the surface, this increases the frequency of reactant particle collisions which then increases the rate of reaction.

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Answer to: Would grinding a solid reactant into a powder be expected to increase the reaction rate, decrease the reaction rate, or have no effect...

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Effect of surface area on the rate of reaction: When the particle size of a fixed mass of a solid reactant becomes smaller, the total exposed surface area becomes larger, the rate of reaction increases. Set I: 1 g of zinc powder and 20 cm 3 of 0.2 mol dm –3 hydrochloric acid at room conditions.

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This page describes and explains the effect of changing the surface area of a solid on the rate of a reaction it is involved in. This applies to reactions involving a solid and a gas, or a solid and a liquid. It includes cases where the …

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