PLEASE HELP ASAP! What evidence have you discovered to explain how knowing the type of matter that makes up each substance determines the state of matter?

Which best describes how johannes kepler developed his laws of planetary motion

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. p k a1 p k a2 1.30 6.70 calculate the ph for each of the points in the titration of 50.0 ml of 1.5 m h3po3(aq) 1.5 m h 3 po 3 ( aq ) with 1.5 m koh(aq). 1.5 m koh ( aq ) .