Which clue can be used to identify a chemical reaction as a decomposition reaction? a) the reaction involves oxygen. b) the reaction involves ions. c) the reaction has a single reactant. d)the reaction has a single product.

Prices for products became more affordable as a result of new forms of ,witch got things to market faster and cheaper

Which of the following is an agent of political socialization? a. the president b. families c. state governments which is an important source of political socialization for young people? a. mass media b. social media c. both of these which is an example of schools engaging in explicit political socialization? a. requiring that civics and government be taught. b. requiring recitation of the pledge of allegiance. c. requiring that students follow school rules. which is an example of schools engaging in implicit political socialization? a. requiring that students follow school rules. b. requiring that civics and government be taught. c. requiring recitation of the pledge of allegiance. which is a way that schools teach patriotism? a. requiring that civics and government be taught. b. requiring that students follow school rules. c. requiring recitation of the pledge of allegiance.

The authors of the paper "fudging the numbers: distributing chocolate influences student evaluations of an undergraduate course"† carried out a study to see if events unrelated to an undergraduate course could affect student evaluations. students enrolled in statistics courses taught by the same instructor participated in the study. all students attended the same lectures and one of six discussion sections that met once a week. at the end of the course, the researchers chose three of the discussion sections to be the "chocolate group." students in these three sections were offered chocolate prior to having them fill out course evaluations. students in the other three sections were not offered chocolate. the researchers concluded that "overall, students offered chocolate gave more positive evaluations than students not offered chocolate." indicate whether the study is an observational study or an experiment. give a brief explanation for your choice.