Which of the following is true about acids?

a. acids give foods a bitter taste.
b. aqueous solutions of acids conduct electricity.
c. acids have a ph value greater than 7.
d. all of the above

This is a mixture that has the same composition throughout.

Why are the trends and exceptions to the trends in ionization energy observed?

Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.