a teacher demonstrates a chemical reaction. a student observes that the test tube in which the reaction occurs becomes warm. what is the source of the thermal energy generated by the reaction?

Which the following is a common trait in a four year college

An ancient marble statue is moved from a rural location to a highly polluted city explain how the move might affect the statue and why you think so

Jasmine thinks that andrea is responsible for posting embarrassing pictures of her on the internet and sending them around the school. jasmine finds andrea before school and starts yelling at her about taking the pictures down. andrea pushes jasmine. what should jasmine do first?