Which of the following statements describes characteristics of an endothermic reaction? Group of answer choices

∆H is negative, and the products have more potential energy than the reactants.

∆H is positive, and the products have less potential energy than the reactants.

∆H is positive, and the products have more potential energy than the reactants.

∆H is negative, and the products have less potential energy than the reactants.

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.

How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.

What is the indicator of the number of ions in solution? the amount of conductivity the amount of precipitate the amount of solute added