An atom that has 13 protons and 15 neutrons is an isotope of the element

49. Which of the following statements regarding chemical equilibrium is true? Equilibrium is shown with a single arrow and/or an equal sign. A system at equilibrium maintains the concentrations of all reactants/products over time.

What is a lithosphere

Describe porosity and how that affects groundwater infiltration.

Match the term to its description. Gravitational energy Answer 1 Mechanical energy Answer 2 Nuclear energy Answer 3 Thermal energy Answer 4 Internal energy caused by vibrations of atoms and molecules The potential energy of position The energy of an

List the 3 mole equalities.

Why does a higher concentration make a reaction faster? There are more collisions per second and the collisions are of greater energy. Collisions occur with greater energy. There are more collisions per second.

A property of metals is high thermal conductivity which is

Do exorthermic reactions make surrounding hotter?

What's a certain indicator that a molecule is polar?

If an electron fell to a lower orbit or energy level, energy would be a. created. b. emitted. c. absorbed. d. transferred.