EXAM 2 CHM101 (NEW 2025/ 2026
Update) Introduction to General, Organic,
and Biochemistry Questions & Answers
{Grade A} 100% Correct (Verified
Solutions)- GCU
Concentration - correct answer Ratio of solute to solvent
Molarity (M) - correct answer Molarity = (moles of solute / liters of solution)
Another way to express the concentration of a solution
Dilution - correct answer M (initial) V (initial) = M (final) V (final)
chemical reaction - correct answer it is chemical change and occurs when one or
more substances is
converted into one or more new substances.
Reactant - correct answer a substance that we start with that undergoes a change
Product - correct answer a new substance that forms during the reaction
Balancing Chemical Equations - correct answer When balancing, coefficients in front
of the element or compound formula are used; these are whole numbers that adjust
the amounts of the species.
* Note that we cannot balance an equation by changing the subscripts of the
compound.
, EXAM 2 CHM101 (NEW 2025/ 2026
Update) Introduction to General, Organic,
and Biochemistry Questions & Answers
{Grade A} 100% Correct (Verified
Solutions)- GCU
Combination (synthesis reactions ) - correct answer 2 element or compunds → 1
compund
A + B → AB
Decomposition - correct answer 1 compund → 2 element or compunds
CD → C + D
Single displacement - correct answer 1 elements and 1 compund → 1 element and 1
compunds
A + CD → C + AD
Double displacement - correct answer 2 compunds → 2 compounds
CD + EF → CF + ED
Combustion - correct answer a substance reacts with oxygen in a reaction that burns
to produce a flame.
CH₄ (g) + 2O₂ (g) → CO₂ (g) 2H₂O (g)
Update) Introduction to General, Organic,
and Biochemistry Questions & Answers
{Grade A} 100% Correct (Verified
Solutions)- GCU
Concentration - correct answer Ratio of solute to solvent
Molarity (M) - correct answer Molarity = (moles of solute / liters of solution)
Another way to express the concentration of a solution
Dilution - correct answer M (initial) V (initial) = M (final) V (final)
chemical reaction - correct answer it is chemical change and occurs when one or
more substances is
converted into one or more new substances.
Reactant - correct answer a substance that we start with that undergoes a change
Product - correct answer a new substance that forms during the reaction
Balancing Chemical Equations - correct answer When balancing, coefficients in front
of the element or compound formula are used; these are whole numbers that adjust
the amounts of the species.
* Note that we cannot balance an equation by changing the subscripts of the
compound.
, EXAM 2 CHM101 (NEW 2025/ 2026
Update) Introduction to General, Organic,
and Biochemistry Questions & Answers
{Grade A} 100% Correct (Verified
Solutions)- GCU
Combination (synthesis reactions ) - correct answer 2 element or compunds → 1
compund
A + B → AB
Decomposition - correct answer 1 compund → 2 element or compunds
CD → C + D
Single displacement - correct answer 1 elements and 1 compund → 1 element and 1
compunds
A + CD → C + AD
Double displacement - correct answer 2 compunds → 2 compounds
CD + EF → CF + ED
Combustion - correct answer a substance reacts with oxygen in a reaction that burns
to produce a flame.
CH₄ (g) + 2O₂ (g) → CO₂ (g) 2H₂O (g)
