Question 221
What is the charge and relative mass of an electron?Atomic structureAtomic structureeasy
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Question 222
Calculate the number of moles in 22 g of carbon dioxide (CO2). (Atomic masses: C=12, O=16)Mole conceptMole conceptmedium
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Question 223
Which of the following is a characteristic of a strong acid?Acids, bases, saltsAcids, bases, saltseasy
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Question 224
In an electrochemical cell, what direction do electrons flow?ElectrochemistryElectrochemistrymedium
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Question 225
In the equilibrium reaction N2 + 3H2 ⇌ 2NH3, what happens when pressure is increased?Rates and equilibriumRates and equilibriummedium
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Question 226
Which of the following orbitals can hold a maximum of 6 electrons?Atomic structureAtomic structuremedium
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Question 227
Which salt is formed when sulfuric acid reacts with sodium hydroxide in a 1:1 mole ratio?Acids, bases, saltsAcids, bases, saltshard
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Question 228
What is the charge of a proton in an atom?Atomic structureAtomic Structureeasy
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Question 229
Which of these best describes a dynamic equilibrium in a reversible reaction?Rates and equilibriumChemical Equilibriumhard
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Question 230
How many moles are present in 22 grams of CO2 (Molar mass = 44 g/mol)?Mole conceptMole Concepteasy
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