Question 131
In an electrochemical cell, oxidation occurs at which electrode?ElectrochemistryElectrochemistrymedium
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Question 132
In a reversible reaction at equilibrium, what happens if the concentration of a reactant is increased?Rates and equilibriumRates and equilibriumhard
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Question 133
What is the correct molecular formula for ethanoic acid?Organic chemistryOrganic chemistrymedium
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Question 134
Which particle has the least mass in an atom?Atomic structureAtomic structureeasy
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Question 135
What is the atomic number of an element with 17 protons, 18 neutrons, and 17 electrons?Atomic structureAtomic structureeasy
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Question 136
Which type of chemical bond is formed when electrons are shared between two atoms?Chemical bondingChemical bondingeasy
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Question 137
Calculate the number of moles in 44 g of CO₂ (molar mass = 44 g/mol).Mole conceptMole concepteasy
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Question 138
In an electrochemical cell, which electrode does oxidation occur?ElectrochemistryElectrochemistrymedium
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Question 139
What is the equilibrium expression Kc for the reaction: N₂ + 3H₂ ⇌ 2NH₃?Rates and equilibriumRates and equilibriumhard
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Question 140
Which of the following is a primary alkanol?Organic chemistryOrganic chemistryhard
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