What pigments can you expect to find in the spinach? (Select all that apply.) a. Anthocyanins (blue) b. Carotenes (orange) c. Porphyrins (red or yellow) d. Pheophytin a & b (gray) e. Chlorophyll a & b (green or blue-green) f. Xanthophylls (yellow)

Chlorophyll a & b (green or blue-green) f. Xanthophylls (yellow)Carotenes (orange) Pheophytin a & b (gray)

Explanation:

Spinach leaves usually contain chlorophyll a and b and β-carotene as major pigments there may be smaller amounts of other pigments such as xanthophylls present; phenophytins, are also present in the spinach as pigments.

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml