GENERAL CHEMISTRY Flashcards
Anything that occupies space and has mass and volume.
Matter
The measure of an object’s resistance to change in motion.
Mass
The measure of the space occupied by something
Volume
It has a fixed shape and volume and it is incompressible
Solid
It has no fixed shape but has a fixed volume
Liquid
It has no fixed shape and volume
Gas
What theory is it that says all matter is made up of extremely small particles that are in constant motion?
Kinetic Molecular Theory
It can’t be broken down into simpler substances
Element
Hydrogen
Element
It can be two or more elements, a new set of properties, and can be separated by a chemical mean
Compound
Bronze
Compound
It is two or more substances that retain individual identities and can be separated by a physical mean
Mixture
It is a uniform composition
Homogeneous
Which among is homogeneous?
a. air, water, brewed coffee
b. H and He
c. salad
d. all of the above
A
It is not a uniform all throughout
Heterogeneous
What is an example of Heterogeneous?
Cereal Milk
It depends on the amount of matter being measured
Extensive
It did not depend on the amount of substance present
Intensive
Which belongs to the following; volume, mass
Extensive
Which belongs to the following; color, boiling point
Intensive
can be determined without changing the substance’s chemical identity
Physical Properties
can be determined by changing the substance’s chemical identity flammability, combustibility, toxicity
Chemical Properties
Formulated a precise definition of the indivisible building blocks of matter
John Dalton
he is a Greek philosopher and is the first to coin the term “atom” from the Greek word “atomos” (uncuttable or indivisible)
Democritus
basic unit of an element that can enter into chemical combination
Atom
The person who discovered Electron (-)
John Joseph “JJ” Thomson
The person who discovered Proton (+)
Ernest Rutherford
The person who discovered Neutron
James Chadwick
number of protons
equal to the number of electrons in a neutral atom
ID number
Atomic Number
total number of neutrons and protons
Mass Number
aggregate of at least two atoms
held together by chemical bonds.
May contain atoms of the same elements or atoms of two or more elements (Water)
Atomic Number
charged atom formed when electrons are gained or lost
Ions
negatively charged atom; metals
Cation
positively charged atom; non-metals
Anion
What is matter?
Anything that occupies space and has volume and mass
