Three different sub-atomic particles are described below: particle x: uncharged particle y: present outside the nucleus particle z: attracts particle y which statement is true? x is a neutron, y is an electron, and z is a proton. x is a neutron, y is a proton, and z is an electron. x is a proton, y is an electron, and z is a neutron. x is an electron, y is a proton, and z is a neutron.

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?

)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.

Which states of matter have particles that move independently of one another with very little attraction?