Which of the following pairs lists a substance that can neutralize H2SO4 and the salt that would be produced from the reaction? a. CaOH2 and Ca(SO4)2
b. LiOH and Li2SO4
c. NH4 and NH4SO4
d. NH3 and (NH3)2SO4

What is the result of multiplying (2.5 × 1010) × (2.0 × 10-7)? a. 5.0 × 103 b. 5.0 × 10-3 c. 5.0 × 1017 d. 5.0 × 10-17

Gymnast always perform on padded mats. how does the mats protect the gymnast

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.