Why is dalton credited with proposing the first atomic theory if democritus was talking about atoms almost 2,200 years earlier?

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.