What was an ill effect of the industrial revolution? A)air pollution
B)crowded and unhealthy conduction in cities
C)child labor
D)all of the above

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)

Which of the following compounds would be primarily ionic? methane, ch4, ammonia nh3, calcium chloride, cacl2, or carbon dioxide, co2