StoichiometryStoichiometric Ratios1266Choose the best answerA recipe for 16 pancakes requires 2 eggs. How many eggs are required for 48 pancakes?A2B4C6D8 Like 0 Discuss 0Share
LiquidsLondon Dispersion Forces1267Choose the best answerThe most specific force of attraction between helium atoms is:ALondon dispersion forceBHydrogen bondingCDipole–dipole forceDIon–dipole force Like 0 Discuss 0Share
LiquidsVapour Pressure and Temperature1268Choose the best answerVapour pressure of a liquid increases with:ATemperatureBIntermolecular-force strengthCMolecular attractionDDecreasing molecular kinetic energy Like 0 Discuss 0Share
Chemical BondingMolecular Geometry and VSEPR Theory1269Choose the best answerThe molecular shape of NH₂⁻ is:ALinearBTrigonal pyramidalCBentDTetrahedral Like 0 Discuss 0Share
GasesBoyle's Law1270Choose the best answerAt constant temperature, if the pressure of a fixed amount of gas becomes three times its initial value, its volume becomes:A2V/3B3VC2VDV/3 Like 0 Discuss 0Share