Question 1

What is the ratio of A/B where A , B , C , and D represent the coefficients of the balanced equation? A C₁₀H₂₂ + B O₂→C CO₂ + D H₂O

Accepted Answer

The coefficients in a balanced chemical equation represent the relative number of moles of each reactant and product involved in the reaction. In the given equation, the coefficients are A for C10H22, B for O2, C for CO2, and D for H2O. The ratio of A/B is therefore the ratio of the number of moles of C10H22 to the number of moles of O2 in the balanced equation. This ratio is 1/15, which corresponds to choice A.

Question 2

What is the ratio of A/B for the equation below where A , B , C , and D represent the coefficients in the balanced equation? A C₄H₈O + B O₂→C CO₂ + D H₂O

Accepted Answer

To find the ratio of A/B, we need to compare their coefficients. From the balanced equation, we can see that the coefficient of A is 1 and the coefficient of B is 12. Therefore, the ratio of A/B is 1/12. However, we need to simplify this ratio, so we divide both the numerator and denominator by the greatest common factor, which is 1. The simplified ratio is 1/12, which is equivalent to 2/24 or 2/11, rounded to two decimal places. Therefore, the best choice is D) 2/11.

Question 3

What is the sum of the coefficients " A + B + C ", where A , B , and C represent the coefficients of the balanced equation? A P₄ + B O₂→C P₂O₅

Accepted Answer

The balanced equation is P4 + 5O2 → 2P2O5, so A = 1, B = 5, C = 2. The sum A + B + C = 1 + 5 + 2 = 8.

Question 4

What is the ratio of A/B where A , B , C , and D are the coefficients in the balanced equation? A NH₃ + B O₂→C N₂ + D H₂O

Accepted Answer

The ratio of A/B is equal to the ratio of coefficients of A and B in the balanced equation. In this case, the coefficient of A is 1 and the coefficient of B is 1, so the ratio of A/B is 1/1 which simplifies to 1. 
The coefficient of C is also 1, while the coefficient of D is 13. 
Therefore, the ratio of A/B is equal to the ratio of coefficients of A and B, which is 1/1. However, the ratio of D/C is equal to the ratio of coefficients of D and C, which is 13/1 or 13. 
Therefore, the ratio of A/B is 1 and the ratio of D/C is 13, which simplifies to 4/3. 
Thus, the answer is C (4/3).

Question 5

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A C₆H₆+ B O₂→C CO₂ + D H₂O

Accepted Answer

The answer of What is the sum of the coefficients...

Question 6

What is the ratio A/B in the balanced equation for the neutralization reaction of HCl with Mg(OH)₂ (you need to supply the products as well as balance)? A HCl + B Mg(OH)₂→

Accepted Answer

The balanced equation for the neutralization reaction of HCl with Mg(OH)S1U1B12S1U1B0 is:

2 HCl + Mg(OH)S1U1B12S1U1B0 → MgClS1U1B22S1U1B0 + 2 H2OS1U1B20S1U1B0

The ratio of A/B is 2/1, which corresponds to the coefficient ratio of HCl to Mg(OH)S1U1B12S1U1B0 in the balanced equation.

Question 7

What is the ratio of A/B for the equation below where A , B , C , and D represent the coefficients in the balanced equation? A N₂H₄ + B N₂O₄→C N₂ + D H₂O

Accepted Answer

The balanced equation is N₂H₄ + N₂O₄ → 3N₂ + 4H₂O, so the ratio A/B is 1/1, which simplifies to 2/1 when considering the stoichiometry of the reaction.

Question 8

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A K₂CO₃ + B Al₂Cl₆→C KCl + D Al₂(CO₃)₃

Accepted Answer

The coefficients for each element in the reaction must be the same on both sides, which means we can set up a system of equations to solve for each coefficient. Starting with potassium (K), we have one K on the left and one on the right, so A = C = 1. Moving on to aluminum (Al), we have one Al on the left and one on the right, so D = 1. Next, we look at sulfur (S). There are two S atoms on the left and one on the right, so we need to balance this by adding a coefficient of 2 in front of KCl. This gives us: K₂ + B Al₂Cl₆ → 2KCl + D Al₂(CO₃)₃ Finally, we look at chlorine (Cl) and carbon (C). There are initially no chlorine atoms on the left, but after adding 2KCl, we have 2 Cl on the right. This means we need B = 2 to balance the chlorine. For carbon, we have one CO molecule on the left, and none on the right. This means we need to balance it by adding a coefficient of 1 for CO₃ on the right. This gives us: K₂ + 2 Al₂Cl₆ → 2KCl + Al₂(CO₃)₃ + CO₃ Therefore, the sum of the coefficients is A + B + C + D = 1 + 2 + 1 + 1 = 5. The answer is (B).

Question 9

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A Mg₃N₂ (s) + B H₂SO₄ (aq)→C MgSO₄ (aq) + D (NH₄)₂SO₄ (aq)

Accepted Answer

The answer of What is the sum of the coefficients...

Question 10

Which of the following reactions is considered an oxidation-reduction reaction? I. NH₃ (g) + HCl (g)→NH₄Cl II. Zn (s) + CuSO₄ (aq)→Cu (s) + ZnSO₄ (aq) III. 2 K (s) + Cl₂ (g)→2 KCl (s)

Accepted Answer

Reactions II and III are oxidation-reduction reactions because they involve the transfer of electrons. In reaction II, Zn is oxidized to Zn^2+ and Cu^2+ is reduced to Cu. In reaction III, K is oxidized to K+ and Cl2 is reduced to Cl-. Reaction I does not involve the transfer of electrons in the same way, making it not an oxidation-reduction reaction.

Question 11

The reaction HCl + KOH→KCl + H₂O is classified as

Accepted Answer

This is a neutralization reaction where an acid (HCl) reacts with a base (KOH) to form a salt (KCl) and water (H2O).

Question 12

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A C₈H₁₈ + B O₂→C CO₂ + D H₂O

Accepted Answer

The answer of What is the sum of the coefficients...

Question 13

What is the ratio of A/B where A , B , C , and D represent the coefficients of the balanced equation? A H₂SO₄ + B NaOH→C H₂O + D Na₂SO₄

Accepted Answer

The balanced equation is H₂SO₄ + 2 NaOH → 2 H₂O + Na₂SO₄, so the ratio of A/B is 1/2.

Question 14

What is the ratio of A/B where A , B , C , and D represent the coefficients in the balanced equation? A C₃H₆ + B O₂→C CO₂ + D H₂O

Accepted Answer

The balanced equation is C3H6 + 9/2 O2 → 3 CO2 + 3 H2O, so A/B = 1/(9/2) = 2/9.

Question 15

What is the ratio of A/B where A , B , C , and D represent the coefficients in the balanced equation? A C₃H₆O₂ + B O₂→C CO₂ + D H₂O

Accepted Answer

The given chemical equation is not in a standard recognizable format, making it impossible to directly determine the coefficients A, B, C, and D for a balanced chemical equation. Therefore, without being able to interpret the coefficients from the provided equation, none of the given options can be confirmed as correct.

Question 16

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A N₂H₄ + B H₂O₂→C N₂ + D H₂O

Accepted Answer

The balanced equation can be rewritten as: A N₂ + B H₂O + C N₂ + D H₂O = 0 Taking the sum of coefficients on each side, we get: A + B + C + D = 0 Therefore, the sum of coefficients is 0, which corresponds to choice C.

Question 17

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A C₆H₁₄ + B O₂→C CO₂ + D H₂O

Accepted Answer

The answer of What is the sum of the coefficients...

Question 18

What is the ratio of A/B where A , B , C , and D represent the coefficients in the balanced equation? A Zn + B H₃PO₄→C H₂ + D Zn₃(PO₄)₂

Accepted Answer

In the balanced equation, the coefficient of Zn and ZnS are both 1. Therefore, we can compare the coefficients of H₃ in both reactant and product side to get the ratio of A/B. On reactant side, we have B H₃. On product side, we have C H₂ + D Zn₃(PO₄)₂ The coefficient of H₃ is B on reactant side, and it appears as part of the compound Zn₃(PO₄)₂ on the product side. Thus, the coefficient of H₃ in the compound is D, the coefficient of Zn₃. Therefore, the ratio of A/B is D/B. We cannot determine the value of D or B, but we know that the ratio of atoms on product side matches that on reactant side. There are 2 H atoms and 1 S atom on both sides, so the ratio of D/B must be the same as the ratio of 2/1. Simplifying, we get D/B = 3/2.

Question 19

The reaction P₄+ 10 Cl₂→4 PCl₅ is classified as

Accepted Answer

This reaction involves the transfer of electrons from one molecule to another (oxidation and reduction). The initial molecule P₄ is being oxidized, while the 10 Cl₂ molecules are being reduced. Therefore, this is an oxidation-reduction reaction.

Question 20

What is the ratio of A/B where A , B , C , and D represent the coefficients of the balanced equation? A Mg₃N₂ + B H₂O→C NH₃ + D Mg(OH)₂

Accepted Answer

The balanced equation is:Mg3N2 + 6H2O → 6NH3 + 2Mg(OH)2Therefore, the ratio of A/B is 1/6.

Quiz 3: Equations, the Mole, and Chemical Formulas

What is the ratio of A/B where A , B , C , and D represent the coefficients of the balanced equation? A C₁₀H₂₂ + B O₂→C CO₂ + D H₂O

What is the ratio of A/B for the equation below where A , B , C , and D represent the coefficients in the balanced equation? A C₄H₈O + B O₂→C CO₂ + D H₂O

What is the sum of the coefficients " A + B + C ", where A , B , and C represent the coefficients of the balanced equation? A P₄ + B O₂→C P₂O₅

What is the ratio of A/B where A , B , C , and D are the coefficients in the balanced equation? A NH₃ + B O₂→C N₂ + D H₂O

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A C₆H₆+ B O₂→C CO₂ + D H₂O

What is the ratio A/B in the balanced equation for the neutralization reaction of HCl with Mg(OH) ₂ (you need to supply the products as well as balance) ? A HCl + B Mg(OH) ₂→

What is the ratio of A/B for the equation below where A , B , C , and D represent the coefficients in the balanced equation? A N₂H₄ + B N₂O₄→C N₂ + D H₂O

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A K₂CO₃ + B Al₂Cl₆→C KCl + D Al₂(CO₃) ₃

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A Mg₃N₂ (s) + B H₂SO₄ (aq) →C MgSO₄ (aq) + D (NH₄) ₂SO₄ (aq)

Which of the following reactions is considered an oxidation-reduction reaction? I. NH₃ (g) + HCl (g) →NH₄Cl II. Zn (s) + CuSO₄ (aq) →Cu (s) + ZnSO₄ (aq) III. 2 K (s) + Cl₂ (g) →2 KCl (s)

The reaction HCl + KOH→KCl + H₂O is classified as

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A C₈H₁₈ + B O₂→C CO₂ + D H₂O

What is the ratio of A/B where A , B , C , and D represent the coefficients of the balanced equation? A H₂SO₄ + B NaOH→C H₂O + D Na₂SO₄

What is the ratio of A/B where A , B , C , and D represent the coefficients in the balanced equation? A C₃H₆ + B O₂→C CO₂ + D H₂O

What is the ratio of A/B where A , B , C , and D represent the coefficients in the balanced equation? A C₃H₆O₂ + B O₂→C CO₂ + D H₂O

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A N₂H₄ + B H₂O₂→C N₂ + D H₂O

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A C₆H₁₄ + B O₂→C CO₂ + D H₂O

What is the ratio of A/B where A , B , C , and D represent the coefficients in the balanced equation? A Zn + B H₃PO₄→C H₂ + D Zn₃(PO₄) ₂

The reaction P₄+ 10 Cl₂→4 PCl₅ is classified as

What is the ratio of A/B where A , B , C , and D represent the coefficients of the balanced equation? A Mg₃N₂ + B H₂O→C NH₃ + D Mg(OH) ₂

Quiz 3: Equations, the Mole, and Chemical Formulas

What is the ratio of A/B where A , B , C , and D represent the coefficients of the balanced equation? A C10H22 + B O2→C CO2 + D H2O

What is the ratio of A/B for the equation below where A , B , C , and D represent the coefficients in the balanced equation? A C4H8O + B O2→C CO2 + D H2O

What is the sum of the coefficients " A + B + C ", where A , B , and C represent the coefficients of the balanced equation? A P4 + B O2→C P2O5

What is the ratio of A/B where A , B , C , and D are the coefficients in the balanced equation? A NH3 + B O2→C N2 + D H2O

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A C6H6 + B O2→C CO2 + D H2O

What is the ratio A/B in the balanced equation for the neutralization reaction of HCl with Mg(OH) 2 (you need to supply the products as well as balance) ? A HCl + B Mg(OH) 2→

What is the ratio of A/B for the equation below where A , B , C , and D represent the coefficients in the balanced equation? A N2H4 + B N2O4→C N2 + D H2O

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A K2CO3 + B Al2Cl6→C KCl + D Al2(CO3) 3

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A Mg3N2 (s) + B H2SO4 (aq) →C MgSO4 (aq) + D (NH4) 2SO4 (aq)

Which of the following reactions is considered an oxidation-reduction reaction? I. NH3 (g) + HCl (g) →NH4Cl II. Zn (s) + CuSO4 (aq) →Cu (s) + ZnSO4 (aq) III. 2 K (s) + Cl2 (g) →2 KCl (s)

The reaction HCl + KOH→KCl + H2O is classified as

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A C8H18 + B O2→C CO2 + D H2O

What is the ratio of A/B where A , B , C , and D represent the coefficients of the balanced equation? A H2SO4 + B NaOH→C H2O + D Na2SO4

What is the ratio of A/B where A , B , C , and D represent the coefficients in the balanced equation? A C3H6 + B O2→C CO2 + D H2O

What is the ratio of A/B where A , B , C , and D represent the coefficients in the balanced equation? A C3H6O2 + B O2→C CO2 + D H2O

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A N2H4 + B H2O2→C N2 + D H2O

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A C6H14 + B O2→C CO2 + D H2O

What is the ratio of A/B where A , B , C , and D represent the coefficients in the balanced equation? A Zn + B H3PO4→C H2 + D Zn3(PO4) 2

The reaction P4+ 10 Cl2→4 PCl5 is classified as

What is the ratio of A/B where A , B , C , and D represent the coefficients of the balanced equation? A Mg3N2 + B H2O→C NH3 + D Mg(OH) 2

What is the ratio of A/B where A , B , C , and D represent the coefficients of the balanced equation? A C₁₀H₂₂ + B O₂→C CO₂ + D H₂O

What is the ratio of A/B for the equation below where A , B , C , and D represent the coefficients in the balanced equation? A C₄H₈O + B O₂→C CO₂ + D H₂O

What is the sum of the coefficients " A + B + C ", where A , B , and C represent the coefficients of the balanced equation? A P₄ + B O₂→C P₂O₅

What is the ratio of A/B where A , B , C , and D are the coefficients in the balanced equation? A NH₃ + B O₂→C N₂ + D H₂O

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A C₆H₆+ B O₂→C CO₂ + D H₂O

What is the ratio A/B in the balanced equation for the neutralization reaction of HCl with Mg(OH) ₂ (you need to supply the products as well as balance) ? A HCl + B Mg(OH) ₂→

What is the ratio of A/B for the equation below where A , B , C , and D represent the coefficients in the balanced equation? A N₂H₄ + B N₂O₄→C N₂ + D H₂O

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A K₂CO₃ + B Al₂Cl₆→C KCl + D Al₂(CO₃) ₃

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A Mg₃N₂ (s) + B H₂SO₄ (aq) →C MgSO₄ (aq) + D (NH₄) ₂SO₄ (aq)

Which of the following reactions is considered an oxidation-reduction reaction? I. NH₃ (g) + HCl (g) →NH₄Cl II. Zn (s) + CuSO₄ (aq) →Cu (s) + ZnSO₄ (aq) III. 2 K (s) + Cl₂ (g) →2 KCl (s)

The reaction HCl + KOH→KCl + H₂O is classified as

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A C₈H₁₈ + B O₂→C CO₂ + D H₂O

What is the ratio of A/B where A , B , C , and D represent the coefficients of the balanced equation? A H₂SO₄ + B NaOH→C H₂O + D Na₂SO₄

What is the ratio of A/B where A , B , C , and D represent the coefficients in the balanced equation? A C₃H₆ + B O₂→C CO₂ + D H₂O

What is the ratio of A/B where A , B , C , and D represent the coefficients in the balanced equation? A C₃H₆O₂ + B O₂→C CO₂ + D H₂O

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A N₂H₄ + B H₂O₂→C N₂ + D H₂O

What is the sum of the coefficients " A + B + C + D ", where A , B , C , and D represent the coefficients of the balanced equation? A C₆H₁₄ + B O₂→C CO₂ + D H₂O

What is the ratio of A/B where A , B , C , and D represent the coefficients in the balanced equation? A Zn + B H₃PO₄→C H₂ + D Zn₃(PO₄) ₂

The reaction P₄+ 10 Cl₂→4 PCl₅ is classified as

What is the ratio of A/B where A , B , C , and D represent the coefficients of the balanced equation? A Mg₃N₂ + B H₂O→C NH₃ + D Mg(OH) ₂