For D-mannose calculate the number of isomers with (name and structures)

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

How many moles of al3+ ions are in 1.25 moles of al2o3