Aspeaker conntected to an mp3 player converts electrical energy into sound energy. according to the law of conversation of energy energy is? a)distroyed when operating b)created when operating c) neither created nor distroyed when operating d) created and then distroyed as the system operate

What type of reaction is illustrated? 2c12o5 = 2cl2 + 502

Let the ed50 of a recreational drug be defined as the amount required for 50% of a test group to feel high or get a buzz. if the ed50 value of ethanol is 470 mg/kg body mass, what dose would a 70 kg party goer need to quickly consume in order to have a 50% chance of getting a buzz? 235 mg 470 mg 32,900 mg 35,000,000 mg

Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.