A solution contain three components Nacl mgcl and Alcl3 In which nacl os presenf 25% mgcl in 71% then what will be the mass percentage of alcl3

The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?

Which of the following molecules is polar? c3h7oh c2h5cooh

An unknown insoluble substance displaced the water shown. it's mass is indicated on the triple beam balance. mass = a. 694 b. 693.5 c. 693.0 d.693.8