3. Which of the following most likely describes an isotope? * O a. Oxygen with 27 electrons.
b. Neon with 10 protons.
O c. Fluorine with 35 neutrons.
O d. Lithium with an atomic mass of 7 amu.

What can be added to the examples section of each circle? endothermic: ice melting into water, and a heat pack becoming warm exothermic: a glow stick glowing, and fireworks exploding endothermic: ice melting into water, and an instant ice pack turning cold exothermic: fireworks exploding, and gasoline burning endothermic: a glow stick glowing, and a heat pack becoming warm exothermic: an instant ice pack turning cold, and ice melting into water endothermic: gasoline burning, and an instant ice pack turning cold exothermic: ice melting into water, and an instant ice pack turning cold

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst