Chemistry Flashcards
Chem
What is chemistry?
Science that deals w the composition, structures, and properties of matter and how matter changes under differnt comditions
Whats organic chemistry?
Study of substances that contain the element carbon
Inorganic chemistry?
Study of substances that do not contain the element carbon but may contain hydrogen
Matter?
Any substance that occupies space and has mass
Element?
Simplest form of chemical matter. cant be broken down into a simpler substance
What is a pure substance? & example?
Chemical combination of matter in fixd proportions.
Aluminum foil
Physical mixture, and example?
Physical combination of matter jn any proportion, salt and water
Ion with a negetive charge is called what?
anion
Ion with a positive charge?
Cation
What is the pH scale?
Measure of the acidity and alkalinity in a substance. Has a range of 0-14, 7 being neutral.