Chemisty 1
Type of bonding in which an atom loses or gains electrons
ionic bond
A chemical change can be described as
A change in which one or more new substances are formed
Where is known as the birthplace of stars?
nebula
Name the layers of the Earth starting with the Core.
Inner Core, Outer Core, Mantle, and Crust
The theory that Earth’s crust is broken into large pieces that move and interact is called
plate tectonics
____ are the molecules being made
products
What best defines an element?
pure substances which are composed of only one type of atom
What is the last stage for a star that is considered the largest super giant?
Black hole
Almost 80% of the air we breathe is this element.
Nitrogen
The pacific plate is also known as the
ring of fire
Why are alkali metals so reactive?
They have one electron on their outer shell
What best defines a compound?
a substance made up of two or more different chemical elements
What color are the hottest stars typically?
blue
What material forms new ocean floor?
Basalt
Tectonic plates float on the
mantle
mixture in which two or more substances are evenly mixed on atomic level but not bonded together
homogeneous mixture
the substance that exists in the greatest quantity in a solution
the solvent
A large icy object that orbits the Sun
Comets
Identify two processes that form igneous rocks.
Melting and solidification
What are the 3 types of plate boundaries?
divergent, convergent, transform
Noble gases have these qualities
odorless, colorless, nonflammable, and have low reactivity
The three main groups of elements are metals, nonmetals, and
metalloids
The sun, our solar system is part of what Galaxy?
Milky Way
Identify characteristics of sedimentary rocks
formed from layers of sand, silt, dead plants, and animal skeletons
boundaries are places where plates move toward each other and collide.
convergent