Based on the trend lines, what has happened to the amount of CO2 in the atmosphere between the years 1800 and 1970? What has happened to temperatures during the same time period? Do the two trends
appear related? Explain

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon

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

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules