Acopper coin with a mass of 6.30 grams changes temperature in the sunshine from 20.0°c to 32.0°c. how much energy is transferred? the specific heat capacity of copper is 0.377 joules/gram degree celsius. express your answer to three significant figures. 

Which of the following describes a situation where competition between producers exists

Essay-alternative energy sources research sources of energy that are being developed. write a report of 350-400 words discussing the information you learned concerning the development of various energy sources and the impact that you think they will have on your life. include sources cited at the end of your report using the mla format. follow the rubric guidelines. note that wikipedia is not an appropriate resource for a research paper. worth 99

Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.