Comprehensive Blood pH Homeostasis: Carbonic
Acid-Bicarbonate Buffer, Hydronium Ion Regulation,
Acid-Base Equilibrium, Renal Compensation,
Respiratory Control, Buffer Systems, Ionic Balance,
Electrolyte Homeostasis, pH Stabilization, Acid
Neutralization, Base Interaction, Hydrogen Ion
Dynamics, Chemical Equilibrium, Physiological
Regulation, Metabolic Acidosis, Respiratory
Alkalosis, Hydrogen-Bicarbonate Feedback, Plasma
pH Maintenance, Systemic Buffering, Cellular
Homeostasis Exam Questions Verified and Provided
with A+ Graded Rationales Latest Updated 2026
Calculate the molar mass of Na3PO4 to one decimal place.
163.9
Calculate the mass in grams of 3.00 moles of NO2.
138 g
How many moles of carbon atoms are there in 0.500 mole of C2H6?
1.00 mole
All of the following are examples of chemical change except:
Chopping a carrot
Balance the following equation: ____ Al + ____ CuSO4 → ____ Cu + ____ Al2(SO4)3
2, 3, 3, 1
Identify if the following reactions would be classified as a:
combination (com)
decomposition (dec)
single replacement (SR)
or double replacement (DR) reaction:
1. 2H2O=2H2+O2
2. Mg+2AgNO3=Mg(NO3)2+2Ag
1|Page
, 1. dec
2. SR
In the following reaction, Cl2 + 2KI → 2KCl + I2, it can be concluded that
Cl2 is reduced, and I- (in KI) is oxidized
Sulfur dioxide reacts with oxygen to produce sulfur trioxide, 2SO2 + O2 → 2SO3. How many
grams of O2 are required for the reaction if you have 18.0 g of SO2?
4.50 g
The number of moles of oxygen gas needed to react with 4.0 moles of Mg is: 2Mg + O2 →
2MgO
2.0 moles
Which of the following is true in an exothermic reaction?
I. The energy of the products is higher than than of the reactants.
II. Heat is released.
Only II is true.
All of the following are true of the behavior of a gas except
the attractive force between gas particles is strong
An oxygen tank contains oxygen at a pressure of 608 mmHg. What is the pressure in the tank in
atm?
0.80 atm
The volume of a gas with a pressure of 1.2 atm increases from 1.0 L to 4.0 L. What is the final
pressure of the gas, assuming constant temperature?
0.30 atm
The temperature of a 500. mL sample of gas increases from 150 °C to 350 °C. What is the final
volume of the sample of gas if the pressure in the container is kept constant?
740 mL
Complete the following: In Charles’ law, the volume of a gas_____ when the ______decreases.
decreases, temperature
At 570 mm Hg and 25 °C, a gas sample has a volume of 2270 mL. What is the final pressure (in
mm Hg) at a volume of 1250 mL and a temperature of 175 °C?
2|Page
Acid-Bicarbonate Buffer, Hydronium Ion Regulation,
Acid-Base Equilibrium, Renal Compensation,
Respiratory Control, Buffer Systems, Ionic Balance,
Electrolyte Homeostasis, pH Stabilization, Acid
Neutralization, Base Interaction, Hydrogen Ion
Dynamics, Chemical Equilibrium, Physiological
Regulation, Metabolic Acidosis, Respiratory
Alkalosis, Hydrogen-Bicarbonate Feedback, Plasma
pH Maintenance, Systemic Buffering, Cellular
Homeostasis Exam Questions Verified and Provided
with A+ Graded Rationales Latest Updated 2026
Calculate the molar mass of Na3PO4 to one decimal place.
163.9
Calculate the mass in grams of 3.00 moles of NO2.
138 g
How many moles of carbon atoms are there in 0.500 mole of C2H6?
1.00 mole
All of the following are examples of chemical change except:
Chopping a carrot
Balance the following equation: ____ Al + ____ CuSO4 → ____ Cu + ____ Al2(SO4)3
2, 3, 3, 1
Identify if the following reactions would be classified as a:
combination (com)
decomposition (dec)
single replacement (SR)
or double replacement (DR) reaction:
1. 2H2O=2H2+O2
2. Mg+2AgNO3=Mg(NO3)2+2Ag
1|Page
, 1. dec
2. SR
In the following reaction, Cl2 + 2KI → 2KCl + I2, it can be concluded that
Cl2 is reduced, and I- (in KI) is oxidized
Sulfur dioxide reacts with oxygen to produce sulfur trioxide, 2SO2 + O2 → 2SO3. How many
grams of O2 are required for the reaction if you have 18.0 g of SO2?
4.50 g
The number of moles of oxygen gas needed to react with 4.0 moles of Mg is: 2Mg + O2 →
2MgO
2.0 moles
Which of the following is true in an exothermic reaction?
I. The energy of the products is higher than than of the reactants.
II. Heat is released.
Only II is true.
All of the following are true of the behavior of a gas except
the attractive force between gas particles is strong
An oxygen tank contains oxygen at a pressure of 608 mmHg. What is the pressure in the tank in
atm?
0.80 atm
The volume of a gas with a pressure of 1.2 atm increases from 1.0 L to 4.0 L. What is the final
pressure of the gas, assuming constant temperature?
0.30 atm
The temperature of a 500. mL sample of gas increases from 150 °C to 350 °C. What is the final
volume of the sample of gas if the pressure in the container is kept constant?
740 mL
Complete the following: In Charles’ law, the volume of a gas_____ when the ______decreases.
decreases, temperature
At 570 mm Hg and 25 °C, a gas sample has a volume of 2270 mL. What is the final pressure (in
mm Hg) at a volume of 1250 mL and a temperature of 175 °C?
2|Page
