Question 161
What is the purpose of the salt bridge in an electrochemical cell?ElectrochemistryElectrochemistrymedium
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Question 162
Which polymer is formed by the repeated addition of ethene monomers?Polymer chemistryPolymer Chemistrymedium
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Question 163
Which property is typical of ionic compounds?Structure and properties of matterStructure and properties of mattermedium
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Question 164
Which element has the highest electronegativity?PeriodicityPeriodicityeasy
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Question 165
How does increasing the temperature affect the rate of a chemical reaction?Rates of reactions (kinetics)Rates of reactionsmedium
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Question 166
In a reversible reaction at equilibrium, what happens when the concentration of a reactant is increased?EquilibriumEquilibriummedium
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Question 167
Which polymer is produced from the monomer ethene?Polymer chemistryPolymer chemistrymedium
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Question 168
Calculate the number of moles in 36g of water (H₂O). (Atomic masses: H=1, O=16)Calculation chemistry (stoichiometry)Calculation chemistryeasy
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Question 169
Which property explains why ionic compounds generally have high melting points?Structure and properties of matterStructure and properties of mattermedium
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Question 170
In a rate reaction experiment, doubling the concentration of reactant A doubles the rate. What is the order of reaction with respect to A?Rates of reactions (kinetics)Rates of reactionseasy
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