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WAEC ChemistryGhana

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Question 131

Which polymer is produced by the polymerization of ethene (ethylene)?
Polymer chemistryPolymer chemistrymedium

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Question 132

In a chemical reaction, the rate is doubled when the concentration of a reactant is doubled. What is the order of reaction with respect to that reactant?
Rates of reactions (kinetics)Kineticsmedium

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Question 133

In a redox reaction, what happens at the cathode during electrolysis?
ElectrochemistryElectrochemistrymedium

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Question 134

Which polymer is formed by addition polymerization?
Polymer chemistryPolymer Chemistrymedium

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Question 135

How many moles of water are produced when 2 moles of hydrogen gas react completely with oxygen? (2H2 + O2 → 2H2O)
Calculation chemistry (stoichiometry)Stoichiometryeasy

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Question 136

Which property increases as you move from left to right across a period in the periodic table?
PeriodicityPeriodicitymedium

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Question 137

Which factor does NOT generally affect the rate of a chemical reaction?
Rates of reactions (kinetics)Rates of reactionsmedium

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Question 138

What is the pH of a neutral solution at 25°C?
Acids, bases, saltsAcids, bases, saltseasy

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Question 139

Which polymer is formed by the polymerization of ethylene monomers?
Polymer chemistryPolymer chemistrymedium

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Question 140

In electrochemistry, the electrode where oxidation occurs is called the:
ElectrochemistryElectrochemistrymedium

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