Quadrilateral ABCD is shown on the coordinate grid below. Which rule best describes the transformation that was used to create quadrilateral A'B'C'D'?
A. Quadrilateral ABCD was dilated by a scale factor of –1 to create quadrilateral A'B'C'D'.
B. Quadrilateral ABCD was dilated by a scale factor of 2 to create quadrilateral A'B'C'D'.
C. Quadrilateral ABCD was dilated by a scale factor of 0.5 to create quadrilateral A'B'C'D'.
D. Quadrilateral ABCD was dilated by a scale factor of 0.25 to create quadrilateral A'B'C'D'.

If you add 10ml of hot water to 10ml of cold water and the change in tempature 8°c calculate how much energy is gained by the cold water

The scheme below is from a series of reactions that are part of a synthesis of vitamin a. answer the following questions with reference to this scheme. (i) what is "reagent a"? (ii) draw a step-by-step mechanism which explains the formation of compound c from compound b (iii) which reagents would you use to form compound e from compounds c and d (reagents b and c)? for each reagent suggested above in (ii) explain the role of the reagent in the reaction to (iv) form compound e. you may wish to do this by drawing a mechanism. 1. addition of reagent a но reagent a 2. н,о" thо oh нон-с compound a. compound b. compound c .ch-оh 1. reagent b "сно 2. reagent c сh oh compound e. compound d.

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure