If each whole number change on the ph scale indicates a tenfold (10x) change in acidity,
with lower numbers being more acidic, how much more acidic is water with a
ph of 2 than water with a ph of 6? just put the number.

Answer: 10000 times

In chemistry, the pH scale is defined as a logarithmic scale used to specify the acidity or basicity of a solution.

In your example, there are four differences in the pH level between the two different water types. As each level indicates a tenfold change, then the resulting value will be 10000 from where .

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?

i think it is d. objects resist changes in their state of motion.