Chapter 2 Part 2

Question 0

Ionic bond

Answer 0

A chemical bond resulting from the attraction between oppositely charged ions

Question 1

Ion

Answer 1

An atom that has gained or lost one or more electrons, Thus acquiring a charged

Question 2

Istope

Answer 2

A variant form of an atom. The variant form has the same number of protons, but different number of neutrons

Question 3

Molecule

Answer 3

A group of two or more atoms held together by covalent bonds

Question 4

Neutron

Answer 4

An electrically neutral particle (a particle with no electrical charge), found in the nucleus of an atom.

Question 5

Nonpolar covalent bond

Answer 5

A type of bond in which electrons are shared equally between two atoms of similar elecronegativity

Question 6

Nucleus

Answer 6

An atom’s central core, containing protons and neutrons

Question 7

pH scale

Answer 7

A measure of the relative acidity of a solution ranging from 0 (most acidic) to 14 (most basic). The letters stand for potential hydrogen and refer to the concentration of hydrogen ions (H+)

Question 8

Polar covalent bond

Answer 8

A type of bond between atoms that differ in electronegativity. The shared electrons are pulled closer to the more electronegative atom, making it slightly negative and the other atom slightly positive

Question 9

Polar molecule

Answer 9

An item containing polar covalent bonds.

Question 10

Product

Answer 10

An ending material in a chemical reaction

Question 11

Proton

Answer 11

A subatomic particle with a single positive electrical charge, found in the nucleus of an atom

Question 12

Radioactive isotope

Answer 12

A variant form of an element whose nucleus decays spontaneously, giving off particles and energy.

Question 13

Reactant

Answer 13

A starting material in a chemical reaction

Question 14

Salt

Answer 14

A compound resulting from the formation of ionic bonds; also called an ionic compound.

Question 15

Solute

Answer 15

A substance that is dissolved in the solution

Question 16

Solution

Answer 16

A liquid consisting of a homogeneous mixture of two or more substances, consisting of a dissolving agent, called solvent, and a substance that is dissolved called a solute

Question 17

Solvent

Answer 17

The dissolving agent of a solution. Water is the most versatile dissolving agent known.

Question 18

Surface tension

Answer 18

A measure of how difficult it is to stretch or break the surface of a liquid. Water is a good example of this phenomenon due to the hydrogen bonding of surface molecules

Question 19

Temperature

Answer 19

A measure of the intensity of heat in degrees, reflecting the average kinetic energy or speed of molecules

Question 20

Trace element

Answer 20

An item that is essential for life but required in extremely minute amounts