Work out the empirical formula of a compound that contains 35% of nitrogen , 5% of hydrogen and 60% of oxygen.

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

What are the 4 phases of matter in order of increasing engery content?

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution