Chapter 2 Topics by Jessica Mergen

Jessica / Protons, Neutrons, and Electrons

17mergjes — 2014-09-08 17:26:46 UTC

Protons and neutrons are held together in the nucleus while the electrons are on the outside.

17fesemad — 2014-09-08 17:30:09 UTC

Polarity is the ability of an object to obtain a north and south pole which allows it to attract and repel other polar objects.

17mergjes — 2014-09-08 17:32:09 UTC

Isotopes are elements with the same number of protons and electrons but a different amount of electrons.

17fesemad — 2014-09-08 18:10:53 UTC

Cohesion the action of congruent substances attracting and adhesion is the the action of different substances attracting.

17mergjes — 2014-09-08 18:13:23 UTC

Hydrogen bonding is the attraction between polar molecules (hydrogen) and electromagnetic atoms.

17fesemad — 2014-09-08 18:17:32 UTC

The number of heat units needed to raise the temperature of an object by one degree.

17mergjes — 2014-09-08 18:22:25 UTC

The Van der Waals force is a weak short range electrostatic attractive force between uncharged molecules.

17fesemad — 2014-09-08 18:23:41 UTC

Solutions are mixed into a substance where as suspension contains a precipitate on the bottom and the liquid on the top.

17mergjes — 2014-09-08 18:30:08 UTC

The atomic number is the amount of protons in the atom. The atomic mass is the mass of the atom, or the protons and neutron mass.

17fesemad — 2014-09-08 18:30:53 UTC

a watery substance that is added to an acid or base in order to allow the pH of the substance to remain constant.

17fesemad — 2014-09-08 18:45:05 UTC

An acid is a substance that releases hydrogen ions and a base is a substance that releases hydroxyl ions.

17mergjes — 2014-09-08 22:02:42 UTC

A chemical compound is made up of two or more pure elements. A chemical bond is a chemical substance made of 2+ atoms