Which of the following aqueous solutions has the lowest vapour pressure at 25 °C? (Sucrose is a non-electrolyte.)
0.025 mol kg-1 Ca(NO3)2
0.100 mol kg-1 CaSO4
0.075 mol kg-1 sucrose
0.050 mol kg-1 Naci
0.100 mol kg-1 KNO3

2points why do scientists need governmental funding? o a. government politicians ask all the important scientific questions. o b. scientists have to pay taxes to the government on the money they make. o c. the cost of doing scientific research can be very high. o d. the government is controlled by scientists. submit

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

The volume of a single vanadium atom is 9.29×10-24 cm3. what is the volume of a vanadium atom in microliters?