Page |1
ACS GEN CHEM 1 FINAL Questions and
Correct Answers/ Latest Update / Already
Graded
the physical material of the universe. It is anything that has mass and
occupies space.
Ans: Matter
is made up of relatively few elements.
Ans: Matter
The smallest building block of matter. Smallest particle that retains the
chemical property of the element (O, He, S).
Ans: Atom
Each _______ is made of the same kind of atom
Ans: Element
Combination of atoms held together in specific shapes
Ans: Molecule
All rights reserved © 2025/ 2026 |
, Page |2
No fixed volume or shape, conforms to
volume and shape of container, is compressible
Ans: 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
Ans: Liquid
Rigid with definite shape, very slightly compressible
Ans: Solid
these stable diatomics
Ans: 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
Ans: Law of Constant (Definite) Composition
All rights reserved © 2025/ 2026 |
, Page |3
characteristics of a substance. Can be observed without changing a
substance into another substance
Ans: Physical Properties
Describes the reactivity of a substance. Can only be observed when a
substance is changed into another substance
Ans: Chemical properties:
Does not depend on amount.
Ans: Intensive property :
Depends on amount.
Ans: Extensive property
Substances transform into chemically different substances
Ans: Chemical change
No change in chemical composition
Ans: Physical change
All rights reserved © 2025/ 2026 |
, Page |4
How close to the true value a given measurement is.
Ans: Accuracy
How well a number of independent measurements agree with one
another.
Ans: Precision
Electrons were discovered by ______ in 1897, while
Millikan's Oil Drop experiment determined its charge.
• Neutrons were discovered by James Chadwick in 1932.
Ans: 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.
Ans: Rutherford
Protons were discovered by______in 1919.
Ans: Rutherford
All rights reserved © 2025/ 2026 |
ACS GEN CHEM 1 FINAL Questions and
Correct Answers/ Latest Update / Already
Graded
the physical material of the universe. It is anything that has mass and
occupies space.
Ans: Matter
is made up of relatively few elements.
Ans: Matter
The smallest building block of matter. Smallest particle that retains the
chemical property of the element (O, He, S).
Ans: Atom
Each _______ is made of the same kind of atom
Ans: Element
Combination of atoms held together in specific shapes
Ans: Molecule
All rights reserved © 2025/ 2026 |
, Page |2
No fixed volume or shape, conforms to
volume and shape of container, is compressible
Ans: 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
Ans: Liquid
Rigid with definite shape, very slightly compressible
Ans: Solid
these stable diatomics
Ans: 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
Ans: Law of Constant (Definite) Composition
All rights reserved © 2025/ 2026 |
, Page |3
characteristics of a substance. Can be observed without changing a
substance into another substance
Ans: Physical Properties
Describes the reactivity of a substance. Can only be observed when a
substance is changed into another substance
Ans: Chemical properties:
Does not depend on amount.
Ans: Intensive property :
Depends on amount.
Ans: Extensive property
Substances transform into chemically different substances
Ans: Chemical change
No change in chemical composition
Ans: Physical change
All rights reserved © 2025/ 2026 |
, Page |4
How close to the true value a given measurement is.
Ans: Accuracy
How well a number of independent measurements agree with one
another.
Ans: Precision
Electrons were discovered by ______ in 1897, while
Millikan's Oil Drop experiment determined its charge.
• Neutrons were discovered by James Chadwick in 1932.
Ans: 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.
Ans: Rutherford
Protons were discovered by______in 1919.
Ans: Rutherford
All rights reserved © 2025/ 2026 |
