Chemistry Quiz 2 Flashcards
An atom or group of atoms that is positively or negatively charged as a result of gaining or losing electrons.
“ION”
Positively charged IONs
“Cation”
Negatively charged IONs
“Anions”
The connection that forms a result of attraction between positively and negatively charged ions.
“Ionic Bonding”
The process by which an atom or molecule gains a positive or negative by losing or gaining electrons.
“Ionization”
Compounds that form as a result of positive or negative ions being held together by an ionic bond.
“Ionic Compounds”
A group of ions that carry a charge.
“Polyatomic ION”
Compounds formed when atoms are connected by covalent bonds.
“Covalent Compounds”
The sharing of electrons between two atoms.
“Covalent Bonds”
particles that consist of two or more atoms joined together.
“Molecules”
The sum of the atomic weights of the atoms in the molecule.
“Molecular Weight”
A pair of valence electrons that are not shared with another atom.
“Lone Pairs”
A way to draw molecules when covalent bonds are drawn as lines, and lone pairs are drawn as dots.
“Lewis Structure”
The substance undergoing the change keeps the same composition.
“Physical Changes”
The substance changes its composition and becomes a new substance.
“Chemical Changes”
A process that involves rearrangement of the molecule structure of a substance to form a new substance.
“Chemical Reaction”
shows what compounds you start with and which compounds you end with in a reaction.
“Chemical Equation”
Compounds you start with on the left of the arrow.The Start
“Reactants”
Compounds you end with on the right of the arrow. * The Result*
“Products”
The number of atoms of each element does not change in a chemical reaction.
“Law of Conservation of Mass”
Two smaller molecules come together to form a larger molecule.
“Synthesis”
One larger molecule splits into two smaller molecules.
“Decomposition”
An acid base reacts to form water and salt.
“Neutralization”
Oxygen reacts with carbon, and hydrogen-containing molecules to form carbon dioxide and water.
“Combustion”
