EXAM 2 CHM101 (NEW 2025/ 2026
Update) Introduction to General, Organic,
and Biochemistry Questions & Answers
{Grade A} 100% Correct (Verified
Solutions)- GCU
Which of the following is the best description of the First Law of Thermodynamics? -
correct answer The total energy of the universe is conserved.
How many atoms are there in one mole of gallium atoms?
a) 6.02 x 10^23 atoms
b) one (1)
c) 69.72 g
d) 69.72 atoms - correct answer a) 6.02 x 10^23 atoms
What is the molar mass of dinitrogen trioxide?
[Molar masses (g/mol): N=14.01; O= 16.00]
a) 30.01 g/mol
b) 76.02 g/mol
c) 46.01 g/mol
d) 74.03 g/mol
e) 62.01 g/mol - correct answer b) 76.02 g/mol
A chemical equation is balanced when:
, EXAM 2 CHM101 (NEW 2025/ 2026
Update) Introduction to General, Organic,
and Biochemistry Questions & Answers
{Grade A} 100% Correct (Verified
Solutions)- GCU
a) the sum of the coefficients of the reactants is equal to the sum of the coefficients
of the products
b) the number of atoms of each element is the same in the reactants and products
c) the total number of ions is the same in the reactants and products
d) the charge on each atom is the same in the reactants and products
e) the total number of molecules is the same in reactants and products - correct
answer b) the number of atoms of each element is the same in the reactants and
products
In an oxidation-reduction reaction, the substance oxidized always:
a) takes on oxygen atoms
b) gains electrons
c) gives up hydrogen atoms
d) loses electrons
e) becomes more negatively charged - correct answer d) loses electrons
The energy of motion is an example of:
a) specific heat
b) kinetic energy
c) potential energy
Update) Introduction to General, Organic,
and Biochemistry Questions & Answers
{Grade A} 100% Correct (Verified
Solutions)- GCU
Which of the following is the best description of the First Law of Thermodynamics? -
correct answer The total energy of the universe is conserved.
How many atoms are there in one mole of gallium atoms?
a) 6.02 x 10^23 atoms
b) one (1)
c) 69.72 g
d) 69.72 atoms - correct answer a) 6.02 x 10^23 atoms
What is the molar mass of dinitrogen trioxide?
[Molar masses (g/mol): N=14.01; O= 16.00]
a) 30.01 g/mol
b) 76.02 g/mol
c) 46.01 g/mol
d) 74.03 g/mol
e) 62.01 g/mol - correct answer b) 76.02 g/mol
A chemical equation is balanced when:
, EXAM 2 CHM101 (NEW 2025/ 2026
Update) Introduction to General, Organic,
and Biochemistry Questions & Answers
{Grade A} 100% Correct (Verified
Solutions)- GCU
a) the sum of the coefficients of the reactants is equal to the sum of the coefficients
of the products
b) the number of atoms of each element is the same in the reactants and products
c) the total number of ions is the same in the reactants and products
d) the charge on each atom is the same in the reactants and products
e) the total number of molecules is the same in reactants and products - correct
answer b) the number of atoms of each element is the same in the reactants and
products
In an oxidation-reduction reaction, the substance oxidized always:
a) takes on oxygen atoms
b) gains electrons
c) gives up hydrogen atoms
d) loses electrons
e) becomes more negatively charged - correct answer d) loses electrons
The energy of motion is an example of:
a) specific heat
b) kinetic energy
c) potential energy
