If the enthalpy value for a reaction is negative, what does that indicate about the reaction? explain how you got your answer
a) it’s endothermic and heat is absorbed by the system.
b) it’s exothermic and heat is absorbed by the system.
c) it’s endothermic and heat is released to the surroundings.
d) it’s exothermic and heat is released to the surroundings.

It has been two weeks since charles met with daniel, a dietitian, who provided charles with a menu for weight loss. charles and his mother are going back to see daniel again with a chart of the food charles has eaten. the following lists what charles ate in one day: breakfast 1 banana, 1 cup of nonfat milk, 1 egg lunch 1 cup of carrots, 3 oz of steak, 1 apple, 1 cup of nonfat milk dinner 6 oz of skinless chicken, 1 baked potato, 3 oz of broccoli, 1 cup of nonfat milk

Write a paragraph at least 10 sentences explaining how rocks are used today in society

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.