At top, Image 1 shows 2 C's connected by 2 lines. Each C is connected by single lines to 2 H's. At bottom, two dots and 12 C's in a line, each connected to the others before and after with single lines. Each C is connected by single lines to 2 H's, 1 above and 1 below. Which best describes what is represented by images 1 and 2?

The fact that the total amount of energy in a system remains constant is a(n)

Vi limitens. vastery test select the correct answer. which statement explains why large atoms are more reactive than small atoms? a. large atoms have valence electrons farther from the nucleus and lose them more readily. b. large atoms have greater ionization energy, which they can utilize during a reaction. c. large atoms have a greater number of electrons that they can lose during a reaction. d. large atoms have more energy levels, so they have more energy to pass on in a reaction. reset next

How many atoms or molecules are there in a mole of a substance?