Question 1

Which of the following reactions is correctly balanced?

Accepted Answer

A) N2 + H → 2NH3 
B) 2H2O + C → CO + 2H2 
C) Zn + 2HCl → H2 + ZnCl2 
D) CO + O2 → CO2 
A) N2 + H → 2NH3 
B) 2H2O + C → CO + 2H2 
C) Zn + 2HCl → H2 + ZnCl2 
D) CO + O2 → CO2

Question 2

When the following equation is balanced using integers,   the number of atoms of carbon represented in reactants or products is:

Accepted Answer

A) 8 atoms. 
B) 4 atoms 
C) 6 atoms. 
D) 10 atoms. 
A) 8 atoms. 
B) 4 atoms 
C) 6 atoms. 
D) 10 atoms.

Question 3

The following represents a balanced chemical equation.
Al(NO3)3(aq) + Na 3PO4 (aq) → AlPO4(s) + 3NaNO3(aq)

Accepted Answer

A) True 
 B)False

Question 4

Consider the following energy diagram showing a reaction with and without a catalyst..   
Fill in the blank with the appropriate letter (A,B,C,etc.).
-The activation energy of the catalyzed reaction is represented by_____________________.

Accepted Answer

The answer of Consider the following energy diagram showing a...

Question 5

Based on the following energy diagram, the activation energy for the reaction represented is approximately 40 kcal.

Accepted Answer

A) True 
 B)False

Question 6

Consider the following generic reaction. 
2 A(s) + 3 B(l) → C(g)
If 58.0 g of A reacted completely with B to produce 100.8 g of C, what mass of B reacted?

Accepted Answer

A) 58.0 g 
B) 174 g 
C) 87.0 g 
D) 42.8 g 
E) The mass cannot be determined without knowing the identities of reactants and products. 
A) 58.0 g 
B) 174 g 
C) 87.0 g 
D) 42.8 g 
E) The mass cannot be determined without knowing the identities of reactants and products.

Question 7

Consider the following reaction:   This reaction:

Accepted Answer

A) is endothermic. 
B) has a negative ΔH. 
C) makes the surroundings warmer. 
D) converts chemical energy into thermal energy. 
A) is endothermic. 
B) has a negative ΔH. 
C) makes the surroundings warmer. 
D) converts chemical energy into thermal energy.

Question 8

Which of the following statements is not true about the reaction as written below?

Accepted Answer

A) Hydrogen is a reactant. 
B) C2H4 is a reactant. 
C) The reaction is balanced. 
D) The reaction is at equilibrium. 
A) Hydrogen is a reactant. 
B) C2H4 is a reactant. 
C) The reaction is balanced. 
D) The reaction is at equilibrium.

Which of the following reactions is correctly balanced?

When the following equation is balanced using integers, the number of atoms of carbon represented in reactants or products is:

The following represents a balanced chemical equation. Al(NO₃)₃(aq) + Na ₃PO₄ (aq) → AlPO₄(s) + 3NaNO₃(aq)

Consider the following energy diagram showing a reaction with and without a catalyst.. Fill in the blank with the appropriate letter (A,B,C,etc.). -The activation energy of the catalyzed reaction is represented by_____________________.

Based on the following energy diagram, the activation energy for the reaction represented is approximately 40 kcal.

Consider the following generic reaction. 2 A(s) + 3 B(l) → C(g) If 58.0 g of A reacted completely with B to produce 100.8 g of C, what mass of B reacted?

Consider the following reaction: This reaction:

Which of the following statements is not true about the reaction as written below?

Measurements in Science and Medicine

Atoms, Elements, and Compounds

Chemical Bonds

Energy and Physical Properties

Solution Concentration

Acids and Bases

Nuclear Chemistry

Hydrocarbons: An Introduction to Organic Molecules

Hydration, Dehydration, and Alcohols

Carbonyl Compounds and Redox Reactions

Organic Acids and Bases

Condensation and Hydrolysis Reactions

Proteins

Carbohydrates

Lipids and Membranes

Nucleic Acids, Protein Synthesis, and Heredity

Filters

Exam 6: Chemical Reactions

Which of the following reactions is correctly balanced?

When the following equation is balanced using integers, the number of atoms of carbon represented in reactants or products is:

The following represents a balanced chemical equation. Al(NO3)3(aq) + Na 3PO4 (aq) → AlPO4(s) + 3NaNO3(aq)

Consider the following energy diagram showing a reaction with and without a catalyst.. Fill in the blank with the appropriate letter (A,B,C,etc.). -The activation energy of the catalyzed reaction is represented by_____________________.

Based on the following energy diagram, the activation energy for the reaction represented is approximately 40 kcal.

Consider the following generic reaction. 2 A(s) + 3 B(l) → C(g) If 58.0 g of A reacted completely with B to produce 100.8 g of C, what mass of B reacted?

Consider the following reaction: This reaction:

Which of the following statements is not true about the reaction as written below?

Measurements in Science and Medicine

Atoms, Elements, and Compounds

Chemical Bonds

Energy and Physical Properties

Solution Concentration

Acids and Bases

Nuclear Chemistry

Hydrocarbons: An Introduction to Organic Molecules

Hydration, Dehydration, and Alcohols

Carbonyl Compounds and Redox Reactions

Organic Acids and Bases

Condensation and Hydrolysis Reactions

Proteins

Carbohydrates

Lipids and Membranes

Nucleic Acids, Protein Synthesis, and Heredity

Filters

The following represents a balanced chemical equation. Al(NO₃)₃(aq) + Na ₃PO₄ (aq) → AlPO₄(s) + 3NaNO₃(aq)