What two-dimensional shape is formed by the cross section below?

Consider the reaction 2x2y2+z2⇌2x2y2z which has a rate law of rate= k[x2y2][z2] select a possible mechanism for the reaction.

Anumber cube is rolled two times in a row. find the probability it will land on 2 on the first roll and a number greater then 4 on the second roll

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0