Nitroglycerin, C3H5N3O9, is an unstable compound that decomposes rapidly upon ignition or impact. Below is the thermochemical equation for nitroglycerin: 4 3539 () → 12 2 () + 10 2() + 6 2 () + 13 2 () ∆ = −5678 What mass of nitroglycerin is needed to generate −7285 ?

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

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

With the largest atoms and the smallest number of valence electrons and with the smallest atoms and the greatest number of valence electrons are the most reactive. a. nonmetals; metals b. nonmetals; transition elements c. transition elements; metals d. metals; nonmetals