Flashcards in Chapter 21 Deck (23)
Anything that has made and occupies space.
Deals with how the natural world operates.
Develops applications for basic research.
The smallest unit of an element that can exist independently.
A group of atoms bonded together. H20- 1 oxygen atom, 2 hydrogen atoms.
Atoms are arranged in a fixed position.
Atoms can move past each other.
The study of matter and the transformations it can undergo.
Atoms can move freely in all directions.
Observable characteristics of a substance. (Color, texture, phase)
A substance changed its phase or properties but not its chemical composition.
Describes how one substance interacts with another and created a new substance.
Involves the rearrangement of a substance atoms creating a new substance with different properties.
The attraction between two or more atoms that holds them together in a molecule.
The process In which atoms are rearranged to create a new substance.
Shows how many individual atoms are bound together in an elements pure form.
Created when atoms of different substances are bonded together to create a new substance. (Water, NaCl)
A method used to show the number and types of atoms present in a substance. (Co2)
Shows the number of atoms in the chemical formula. (H20, 1 atom of o, 2 atoms of h)
A summary of a chemical change.
Substance that exists before a chemical change. Located on the left of the chemical equation.
Substance that exists after the chemical change. Locating on the right of a chemical equation.