Show:
Together at last!
Let's get together
Bonds that shape
Are you my type?
Energize me!
100
the joining of atoms to form new substances
What is chemical bonding
100
the force of attraction between oppositely charged ions
What is an ionic bond
100
a neutral group of atoms held together by covalent bonds
What is a molecule
100
a reaction in which two or more substances combine to form a single compound
What is a synthesis reaction
100
the term used to describe a change in which energy is released or removed.
What is exothermic
200
a force of attraction that holds two atoms together
What is a chemical bond
200
the force of attraction between the nuclei of atoms and the electrons shared by the atoms.
What is a covalent bond
200
these two properties of metals describe a metal's ability to be reshaped.
What are ductility and maleability
200
a reaction in which a single compound breaks down into two or more simpler substances.
What is a decomposition reaction
200
the term used to describe a change in which energy is absorbed.
What is endothermic
300
the electrons in the outermost level of an atom
What are valence electrons
300
the force of attraction between a positively charged ion and the electrons in a metal.
What is metallic bonding
300
type of element most likely to form covalent bonds
What are nonmetals
300
a reaction in which an element takes the place of another element in a compound
What is single-replacement reaction
300
State the Law of Conservation of Mass
Mass is neither created or destroyed in ordinary chemical and physical changes
400
charged particles that form during chemical changes when one or more valence electrons transfer from one atom to another.
What is an ion
400
a repeating three dimensional pattern in an ionic compound
What is a crystal lattice
400
two characteristics of ionic compounds
What are high melting point and boiling point. Brittle at room temperature
400
a reaction in which ions in two compounds switch places.
What is double-replacement reaction
400
a substances that speeds up a reaction without being permanently changed
What is a catalyst
500
a model that shows only the valence electrons in an atom
What is an electron dot diagram
500
a model that shows only the valence electrons in an atom.
What is an electron dot diagram
500
the simplest molecules consisting of 2 atoms bonded together.
What are diatomic molecules
500
a number placed in front of a chemical symbol or formula
What is a coefficient
500
the minimum amount of energy needed for substances to react.
What is the activation energy