Which of the following is NOT a postulate in Dalton's atomic theory? I. All matter consists of divisible particles called atoms.
II. Atoms of the same element are identical in mass and properties.
III. Atoms cannot be created or destroyed.
IV. Compounds are formed by a combination of two or more different kinds of atoms.
I
II
III
IV

the answer is IV (4)

Explanation:

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates