Ques: Q: To measure what changes that occur in chemical reactions, chemists usually use a related thermodynamic quantity, calledenthalpy? Choices: - ion exchange - evaporation - entropy - energy A:
Ans: energy

Ques: Q: What planet is a blue green color? Choices: - Mars - sirius - Mercury - uranus A:
Ans: uranus

Ques: Q: What is the measure of the change in the velocity of a moving object called? Choices: - transmission - compression - pressurization - acceleration A:
Ans: acceleration

Ques: Q: At any specific time, the rate at which a reaction is proceeding is known as its what? Choices: - spontaneous rate - immediate rate - emitted rate - instantaneous rate A:
Ans:
instantaneous rate