Calculate the molarity of Na+ ions in a 100 ml solution containing 0.46 g Na3PO4

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159

A40 kilogram skier starts at the top of a 12 meter high slope. at the bottom, she is travelling 10 meters per second. how much energy does she lose to friction