Chapters 1, 10, 12 - Matter And Change, States of Matter, Solutions Flashcards
What is chemistry?
The study of matter and its properties, composition, structure, and change
What is organic chemistry?
Carbon chemistry
What is inorganic chemistry?
All non-carbon chemistry (metals)
What is physical chemistry?
Properties/changes of matter and their relation to energy
What is analytical chemistry?
Identification of a material’s composition
What is biochemistry?
Chemistry of living things
Define chemical
Any substance that has a definite composition
Whats the difference between basic and applied research?
Basic research is for the sake of increasing knowledge, an example is climate research. Applied research is to solve a specific problem, an example is solar cell research.
What is mass?
A measure of the amount of matter in a substance
What is matter?
Anything that has mass and takes up space (volume)
What’s the difference between an element and a compound??
An element is a pure substance cannot be broken down into a simpler, stable substance. A compound can be broken down to simpler stable substances
What’s the difference between extensive and intensive properties with 2 examples?
Extensive properties depend on the amount of matter present (mass and volume) while intensive properties do not (density and melting point).
Reactants are on the _____ side
Products are on the _____ side
Left
Right
What’s the difference between a pure substance and a mixture?
A pure substance has a fixed composition. A mixture is a blend of 2 or more consequent matter, each with their own identity and property.
What’s the difference between a homogeneous mixture and a heterogeneous mixture? Give examples
A homogeneous mixture is a solution that has a uniform composition (salt water). A heterogeneous mixture doesn’t have a uniform composition (cereal)
What does soluble mean
Is able to be dissolved
What’s a solvent?
The Thing doing the dissolving.
What is a solute?
The thing being dissolved
What’s a colloid? Example of an aerosol:
A mixture of Intermediate sized particles that remain suspended (smoke)
What is the Tyndall effect? Give one example from everyday life.
Dispersed colloid particles scatter light causing the colloid to appear cloudy or opague. ( Headlights in fog)
What’s the Brownian motion?
The erratic, jerky, random movement of dispersed particles in a liquid colloid.
What is an electrolyte? What is an example
An electrolyte is a solid that dissolves in water to give an electric current. (Sodium chloride)
How do you go from a gas to a solid?
Deposition
How do you go from a solid to a gas??
Sublimation
