Question 91
Calculate the volume of CO₂ gas (at S.T.P.) produced when 44g of calcium carbonate decomposes completely. (CaCO₃ → CaO + CO₂)Calculation chemistry (stoichiometry)Stoichiometryhard
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Question 92
Which of the following quantum numbers specifies the shape of an electron's orbital?Atomic structure and quantum numbersAtomic structure and quantum numberseasy
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Question 93
What type of chemical bond is formed by the complete transfer of electrons from one atom to another?Chemical bondingChemical bondingeasy
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Question 94
Which property of gases is best explained by the kinetic molecular theory?Structure and properties of matterStructure and properties of mattereasy
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Question 95
In a reaction where the rate is doubled by doubling the concentration of reactant A only, what is the order of the reaction with respect to A?Rates of reactions (kinetics)Rates of reactionsmedium
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Question 96
In the equilibrium reaction N2(g) + 3H2(g) ⇌ 2NH3(g), what effect does increasing pressure have on the position of equilibrium?EquilibriumEquilibriummedium
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Question 97
In an electrochemical cell, the electrode where reduction occurs is called the:ElectrochemistryElectrochemistryeasy
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Question 98
Calculate 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 99
Which of the following is a property of ionic compounds?Structure and properties of matterStructure and properties of mattereasy
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Question 100
What is the trend in atomic radius across Period 3 from sodium to chlorine?PeriodicityPeriodicitymedium
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