TEST BANK FOR ORGANIC CHEMISTRY /Chemistry Test
Problems (all chapters) /graded A+ (questions and
answer) year 2024/2025
which of the following statements concerning matter is correct? - ANSWER-a solid has a fixed volume
and a rigid shape
which term best describes calcium at room temperature? - ANSWER-element
which term best describes table salt (NaCl) at room temperature? - ANSWER-compound
which of the following is a heterogeneous mixture?
anti freeze
a can of diced tomatoes
sugar dissolved in water
table salt dissolved in water
none of the above - ANSWER-none of the above
which of the following best describes rocks such as, granite or marble? - ANSWER-heterogeneous
mixture
which of these statements is true? - ANSWER-soda water is a homogeneous mixture of carbon dioxide
and water
which of these statements is false? - ANSWER-nitrogen is represented by the symbol Ni
which element is correctly identified by its symbol? - ANSWER-lithium is represented by the symbol Li
which of the following describes a chemical change? - ANSWER-oxygen reacts with aluminum forming a
protective surface coating
,TEST BANK FOR ORGANIC CHEMISTRY /Chemistry Test
Problems (all chapters) /graded A+ (questions and
answer) year 2024/2025
which of the following is a physical change? - ANSWER-the condensation of steam
which of the following is a chemical property? - ANSWER-the rusting of iron
Identify the following element: C - ANSWER-carbon
Identify the following element: S - ANSWER-sulfur
Identify the following element: Mg - ANSWER-magnesium
Identify the following element: K - ANSWER-potassium
Identify the following element: Na - ANSWER-sodium
what is the symbol of the following element? oxygen - ANSWER-O
what is the symbol of the following element? phosphorous - ANSWER-P
what is the symbol of the following element? iron - ANSWER-Fe
what is the symbol of the following element? silver - ANSWER-Ag
what is the symbol of the following element? helium - ANSWER-H
how can you tell a diagram is only compounds? include what a compound is. - ANSWER-diagram (A) is
only compounds because a compound is two or more elements combined and the image shows two
elements bonded.
, TEST BANK FOR ORGANIC CHEMISTRY /Chemistry Test
Problems (all chapters) /graded A+ (questions and
answer) year 2024/2025
how can you tell a diagram is a mixture? include what a mixture is - ANSWER-diagram (B) is mixture
because the image shows two or more substances combined
Below is a list of elements, compounds, and mixtures:
C, CO2 (carbon dioxide), NaCl (table salt), Li, Orange juice, salt water
a) identify the elements
b) identify the compounds
c) identify the mixtures - ANSWER-a) C (carbon) and Li (lithium)
b) CO2 and NaCl
c) orange juice, salt water
*what are the four elements that all living things have? - ANSWER-oxygen
carbon
nitrogen
hydrogen
atomic dimensions are often reported in angstroms (1 A+ 1 x10^-10 m) If the atomic radius of the
aluminum atom is 1.43 angstroms what is the radius in millimeters? - ANSWER-1.43 x 10 ^-14
how many significant figures are in the following mass: 0.00047800 - ANSWER-5
a metal sphere has a mass of 20.0 grams. calculate the density of this sphere if the radius is 5.0 cm
V= 4/3 pi(r)^3 - ANSWER-0.0382 g/mL
which of the following is a heterogeneous mixture? - ANSWER-pepperoni pizza
Problems (all chapters) /graded A+ (questions and
answer) year 2024/2025
which of the following statements concerning matter is correct? - ANSWER-a solid has a fixed volume
and a rigid shape
which term best describes calcium at room temperature? - ANSWER-element
which term best describes table salt (NaCl) at room temperature? - ANSWER-compound
which of the following is a heterogeneous mixture?
anti freeze
a can of diced tomatoes
sugar dissolved in water
table salt dissolved in water
none of the above - ANSWER-none of the above
which of the following best describes rocks such as, granite or marble? - ANSWER-heterogeneous
mixture
which of these statements is true? - ANSWER-soda water is a homogeneous mixture of carbon dioxide
and water
which of these statements is false? - ANSWER-nitrogen is represented by the symbol Ni
which element is correctly identified by its symbol? - ANSWER-lithium is represented by the symbol Li
which of the following describes a chemical change? - ANSWER-oxygen reacts with aluminum forming a
protective surface coating
,TEST BANK FOR ORGANIC CHEMISTRY /Chemistry Test
Problems (all chapters) /graded A+ (questions and
answer) year 2024/2025
which of the following is a physical change? - ANSWER-the condensation of steam
which of the following is a chemical property? - ANSWER-the rusting of iron
Identify the following element: C - ANSWER-carbon
Identify the following element: S - ANSWER-sulfur
Identify the following element: Mg - ANSWER-magnesium
Identify the following element: K - ANSWER-potassium
Identify the following element: Na - ANSWER-sodium
what is the symbol of the following element? oxygen - ANSWER-O
what is the symbol of the following element? phosphorous - ANSWER-P
what is the symbol of the following element? iron - ANSWER-Fe
what is the symbol of the following element? silver - ANSWER-Ag
what is the symbol of the following element? helium - ANSWER-H
how can you tell a diagram is only compounds? include what a compound is. - ANSWER-diagram (A) is
only compounds because a compound is two or more elements combined and the image shows two
elements bonded.
, TEST BANK FOR ORGANIC CHEMISTRY /Chemistry Test
Problems (all chapters) /graded A+ (questions and
answer) year 2024/2025
how can you tell a diagram is a mixture? include what a mixture is - ANSWER-diagram (B) is mixture
because the image shows two or more substances combined
Below is a list of elements, compounds, and mixtures:
C, CO2 (carbon dioxide), NaCl (table salt), Li, Orange juice, salt water
a) identify the elements
b) identify the compounds
c) identify the mixtures - ANSWER-a) C (carbon) and Li (lithium)
b) CO2 and NaCl
c) orange juice, salt water
*what are the four elements that all living things have? - ANSWER-oxygen
carbon
nitrogen
hydrogen
atomic dimensions are often reported in angstroms (1 A+ 1 x10^-10 m) If the atomic radius of the
aluminum atom is 1.43 angstroms what is the radius in millimeters? - ANSWER-1.43 x 10 ^-14
how many significant figures are in the following mass: 0.00047800 - ANSWER-5
a metal sphere has a mass of 20.0 grams. calculate the density of this sphere if the radius is 5.0 cm
V= 4/3 pi(r)^3 - ANSWER-0.0382 g/mL
which of the following is a heterogeneous mixture? - ANSWER-pepperoni pizza
