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Chem302A Unit 1 Lab

Flashcards to review while waiting for the Unit 1 lab to complete

QuestionAnswer
In a paper chromatography lab, each ink spot _____ some distance and separates into different colors. travels
In a paper chromatography lab, each ink spot travels some distance and _______ into different colors. separates
You can tell that an ink is a mixture of pigments if you see it ________ during a chromatography lab. separate into different colors
Which of the following is a homogenous mixture of two or more pure substances: water, air, alcohol, or oxygen? air
What is a homogenous mixture? A mixture of pure substances that all APPEARS to be the same (hint: homo = same)
Which would you measure in kilograms: density, mass, or volume? mass
Chemistry is the study of _____. matter
Organic chemistry is the study of ___ compounds. carbon
Inorganic chemistry is the study of ____ compounds. non-carbon
Biochemistry is the chemistry of _____ things. living
Physical chemistry studies the ____ of chemicals. physics
Analytical chemistry ___ and ___ properties of matter. physical and chemical
Matter exists in ___ common phases. 3
Matter exists in 3 common phases: _____, liquid, and gas. solid
Matter exists in 3 common phases: solid, _____, and gas. liquid
Matter exists in 3 common phases: solid, liquid, and ___. gas
matter has ___ and ___. volume and mass
energy has no ___ or _____. mass or volume
matter can change states (aka phases) with the addition or removal of _____. energy
A ____ change does NOT change the atoms or molecules. physical
A ____ change DOES change the atoms or molecules. chemical
A _____ is a blend of two or more substances that can be separated by physical means. mixture
____ substances cannot be separated by physical means. pure
_______ are matter that has uniform and definite composition. pure substances
If pure substances cannot be separated chemically, then they are _______. elements
_____ contain only one type of atom. elements
_____ and ____ can be represented by chemical symbols and chemical formulas. elements and compounds
____ can be separated on the basis of physical properties such as boiling points, freezing points, and densities. mixtures
_____ separates mixtures on the basis of particle size. filtration
_____ uses differences in boiling points to separate mixtures. distillation
____ separates mixtures on the basis of interactions between substances in a mobile phase and those in a stationary phase. chromatography
____ separates mixtures on the basis of density. centrifugation
Created by: mr.shapard