UNIT 7-EQILIBRIA🤎 Flashcards

Question 1

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define a reversible reaction, write an equation for a reversible reaction and indicate the colour change

Question 2

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define dynamic equilibrium and equilibrium

Question 3

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give four characteristics of equilibrium, explain each chracteristic

Question 4

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what is the position of equilibrium? define the Le Chatelier’s principle

Question 5

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use Le Chatelier’s principle to explain the effect of temperature on a system at equilibrium

Question 6

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use Le Chatelier’s principle to explain the effect of pressure on a system at equilibrium, additionally talk about the position of equilibrium in relation to moles

Question 7

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use Le Chatelier’s principle to explain the effect of concentration on a system at equilibrium

Question 8

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use Le Chatelier’s principle to explain the effect of a catalyst on a system at equilibrium

Question 9

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what is Kc? give the equation for calculating Kc using an example equation, state what happens when there is a solid (try two examples in notebook)

Question 10

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define partial pressure, give the equations for finding mole fraction and partial pressure

Question 11

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what is Kp? use an equation to explain how Kp and total pressure is calculated (try two examples in book)

Question 12

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state the effect of a change in temperature, concentration, pressure and the presence of a
catalyst on the value of Kc

Question 13

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what is the haber process? (use an equation), explain the effect of an increase in pressure, decrease in temperature and removing ammonia by condensation (in terms of Le Chatelier’s principle)

Question 14

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what is the contact process? (use an equation), explain the effect of an increase in pressure and decrease in temperature on this process

Question 15

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define an acid, alkali and base

Question 16

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what is a neutralisation reaction? give the general equation and an example equation for such a reaction

Question 17

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name the following common acids: HCl, H2SO4, HNO3, CH3COOH

Question 18

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name the following common alkalis: NaOH, KOH, NH3

Question 19

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define a strong acid, strong base weak acid and weak base, give the PH’s of an acid, neutral solution and base

Question 20

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describe the bronsted lowry theory of acids and bases, what is a bronsted lowry acid and base?

Question 21

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explain the difference between a strong acid, weak acid, strong base and weak base in terms of reaction with a reactive metal, PH values, colour with universal indicator and electrical conductivity

Question 22

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write a simple equation for a neutralisation reaction

Question 23

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draw detailed titration curves for the following reactions: a strong acid added to a strong base, a strong acid added to a weak base, a weak acid added to a strong base, a weak acid added to a weak base, a strong alkali added to a weak acid

Question 24

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state the PH values and colours for the bromothymol blue indicator