1. Place these unknown pH test papers in order from most acidic to most alkaline.
А в
C D
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
pH color chart
A. Paper D. paper C, paper B, paper A
B. Paper B, paper A, paper C, paper D
C. Paper C, paper D, paper A, paper B
D. Paper D, paper C, paper A, paper B
