Question 81
What type of bond is formed when electrons are shared unequally between two atoms?Chemical bondingChemical bondingeasy
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Question 82
Which property is characteristic of ionic compounds?Structure and properties of matterStructure and properties of mattermedium
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Question 83
Which element has the greatest first ionization energy?PeriodicityPeriodicitymedium
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Question 84
In the equilibrium reaction N2 + 3H2 ⇌ 2NH3, what happens to the position of equilibrium if the pressure is increased?EquilibriumEquilibriummedium
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Question 85
Which polymer is formed by the polymerization of ethene (ethylene) monomers?Polymer chemistryPolymer chemistrymedium
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Question 86
What is the empirical formula of a compound containing 40% carbon, 6.7% hydrogen, and 53.3% oxygen by mass?Calculation chemistry (stoichiometry)Calculation chemistryhard
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Question 87
Which allotrope of carbon has a three-dimensional network structure that makes it extremely hard?Structure and properties of matterStructure and properties of mattermedium
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Question 88
What effect does increasing the concentration of reactants generally have on the rate of a chemical reaction?Rates of reactions (kinetics)Rates of reactionseasy
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Question 89
In a reversible reaction at equilibrium, what happens when the temperature is increased?EquilibriumChemical equilibriummedium
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Question 90
Which polymer is formed from the monomer ethene through addition polymerization?Polymer chemistryPolymer chemistrymedium
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