1) How much energy is released if 161 g of mercury is cooled from 85°C to 0°C? CHg=0.138 J/g oC 2) How much energy, in J, is required to raise the temperature of 123.4g of aluminum metal from 3.0 oC to 31.6 oC? CAl= 0.900 J/g oC

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

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table

Select the correct value for the indicated bond angle in each of the compounds. o−o−oo−o−o angle of o3 90° 109.5° < 109.5° 120° < 120° 180° f−b−ff−b−f angle of bf3 180° < 109.5° < 120° 120° 109.5° 90° f−o−ff−o−f angle of of2 < 120° 120° 90° 109.5° 180° < 109.5° cl−be−clcl−be−cl angle of becl2 90° 109.5° 180° 120° < 109.5° < 120° f−p−ff−p−f angle of pf3 90° 109.5° < 109.5° 180° 120° < 120° h−c−hh−c−h angle of ch4 90° < 109.5° 180° 120° < 120° 109.5°