The square on the right is a scaled copy of the square on the left. Identify the scale factor. Express your answer in simplest form.
21
6
6
21

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

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab

Which of the following is an example of conditional probability