ACS GEN CHEM 1 FINAL Exam questions and
answers Graded A+
the physical material of the universe. It is anything that has mass and occupies
space. - ✅✅Matter
is made up of relatively few elements. - ✅✅Matter
The smallest building block of matter. Smallest particle that retains the chemical
property of the element (O, He, S). - ✅✅Atom
Each _______ is made of the same kind of atom - ✅✅Element
Combination of atoms held together in specific shapes - ✅✅Molecule
No fixed volume or shape, conforms to
volume and shape of container, is compressible - ✅✅Gas
Individual particles are confined to a given volume, liquid flows (no definite
shape) and assumes the shape of its container up to the volume of the liquid,
slightly compressible - ✅✅Liquid
Rigid with definite shape, very slightly compressible - ✅✅Solid
these stable diatomics - ✅✅H2,O2, N2, and the Halogens (F2, Cl2, Br2, I2)
,Different samples of any pure compound contain the same elements in the same
proportion by mass - ✅✅Law of Constant (Definite) Composition
characteristics of a substance. Can be observed without changing a substance into
another substance - ✅✅Physical Properties
Describes the reactivity of a substance. Can only be observed when a substance is
changed into another substance - ✅✅Chemical properties:
Does not depend on amount. - ✅✅Intensive property :
Depends on amount. - ✅✅Extensive property
Substances transform into chemically different substances - ✅✅Chemical
change
No change in chemical composition - ✅✅Physical change
How close to the true value a given measurement is. - ✅✅Accuracy
How well a number of independent measurements agree with one another. -
✅✅Precision
Electrons were discovered by ______ in 1897, while
, Millikan's Oil Drop experiment determined its charge.
• Neutrons were discovered by James Chadwick in 1932. - ✅✅J.J. Thompson
Postulated a very small, dense nucleus with the electrons around the outside of
the atom. Most of the volume of the atom is empty space. - ✅✅Rutherford
Protons were discovered by______in 1919. - ✅✅Rutherford
Neutrons were discovered by________ in 1932. - ✅✅James Chadwick
1) All matter is made of atoms. Atoms are indivisible and indestructible.
2) All atoms of a given element are identical in mass and properties
3) Compounds are formed by a combination of two or more different kinds of
atoms.
4) A chemical reaction is a rearrangement of atoms. - ✅✅Dalton's Atomic
Theory
Organic alkANEs - ✅✅Mother Eats Peanut Butter:
Methane: CH4
Ethane: C2H6
answers Graded A+
the physical material of the universe. It is anything that has mass and occupies
space. - ✅✅Matter
is made up of relatively few elements. - ✅✅Matter
The smallest building block of matter. Smallest particle that retains the chemical
property of the element (O, He, S). - ✅✅Atom
Each _______ is made of the same kind of atom - ✅✅Element
Combination of atoms held together in specific shapes - ✅✅Molecule
No fixed volume or shape, conforms to
volume and shape of container, is compressible - ✅✅Gas
Individual particles are confined to a given volume, liquid flows (no definite
shape) and assumes the shape of its container up to the volume of the liquid,
slightly compressible - ✅✅Liquid
Rigid with definite shape, very slightly compressible - ✅✅Solid
these stable diatomics - ✅✅H2,O2, N2, and the Halogens (F2, Cl2, Br2, I2)
,Different samples of any pure compound contain the same elements in the same
proportion by mass - ✅✅Law of Constant (Definite) Composition
characteristics of a substance. Can be observed without changing a substance into
another substance - ✅✅Physical Properties
Describes the reactivity of a substance. Can only be observed when a substance is
changed into another substance - ✅✅Chemical properties:
Does not depend on amount. - ✅✅Intensive property :
Depends on amount. - ✅✅Extensive property
Substances transform into chemically different substances - ✅✅Chemical
change
No change in chemical composition - ✅✅Physical change
How close to the true value a given measurement is. - ✅✅Accuracy
How well a number of independent measurements agree with one another. -
✅✅Precision
Electrons were discovered by ______ in 1897, while
, Millikan's Oil Drop experiment determined its charge.
• Neutrons were discovered by James Chadwick in 1932. - ✅✅J.J. Thompson
Postulated a very small, dense nucleus with the electrons around the outside of
the atom. Most of the volume of the atom is empty space. - ✅✅Rutherford
Protons were discovered by______in 1919. - ✅✅Rutherford
Neutrons were discovered by________ in 1932. - ✅✅James Chadwick
1) All matter is made of atoms. Atoms are indivisible and indestructible.
2) All atoms of a given element are identical in mass and properties
3) Compounds are formed by a combination of two or more different kinds of
atoms.
4) A chemical reaction is a rearrangement of atoms. - ✅✅Dalton's Atomic
Theory
Organic alkANEs - ✅✅Mother Eats Peanut Butter:
Methane: CH4
Ethane: C2H6
