Which method helped you prove this hypothesis? Check all that apply.Using various concentrations of HCl and NaOH to measure a range of pHUsing an existing scale to determine pHKnowing that the cabbage indicator always has the same color at a given pH value
Answer
A
Using various concentrations of HCl and NaOH to measure a range of pH
B
Using an existing scale to determine pH
C
Knowing that the cabbage indicator always has the same color at a given pH value