Question 1

When you inhale (breathe in), oxygen is entering your respiratory system and when you exhale (breathe out), carbon dioxide is leaving your respiratory system.

Accepted Answer

A) True 
 B)False

Question 2

Overall the reactions that occur during respiration can be classified as combustion reactions.

Accepted Answer

A) True 
 B)False

Question 3

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 4

Complete each of the following sentences using one of the terms listed below.
 physical change
chemical change
reactant
product
coefficient
physical state
-Consider the image below. If the balanced equation for this reaction were written oxygen would have a ___________ of 1.

Accepted Answer

The answer of Complete each of the following sentences using...

Question 5

Consider the following reaction. NaOH(aq) + H2SO4(aq) → Na2SO4(aq) + H2O(l) Which of the following represents the correct mass relationships, respectively, across the balanced equation?

Accepted Answer

A)  40.00 g NaOH, 98.08 g H2SO4, 142.04 g Na2SO4, 18.02 g H2O 
B)  40.00 g NaOH, 40.04 g H2SO4, 142.04 g Na2SO4, 9.010 g H2O 
C)  80.00 g NaOH, 98.08 g H2SO4, 142.04 g Na2SO4, 36.04 g H2O 
D)  80.00 g NaOH, 98.08 g H2SO4, 142.04 g Na2SO4, 18.02 g H2O 
A)  40.00 g NaOH, 98.08 g H2SO4, 142.04 g Na2SO4, 18.02 g H2O 
B)  40.00 g NaOH, 40.04 g H2SO4, 142.04 g Na2SO4, 9.010 g H2O 
C)  80.00 g NaOH, 98.08 g H2SO4, 142.04 g Na2SO4, 36.04 g H2O 
D)  80.00 g NaOH, 98.08 g H2SO4, 142.04 g Na2SO4, 18.02 g H2O

Question 6

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 7

When the equation below is properly balanced, what coefficient is of KClO3? KClO3 → KCl + O2

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 8

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 9

If the 'Nutrition Facts' on a food label contains Total Fat 5.0 g, Total Carbohydrate 35 g, and Total Protein 7.0 g, how many Total kcal would be needed for the average healthy person to burn this food item?

Accepted Answer

A)  1.8 × 102 kcal 
B)  2.1 × 102 kcal 
C)  4.2 × 102 kcal 
D)  4.0 × 102 kcal 
A)  1.8 × 102 kcal 
B)  2.1 × 102 kcal 
C)  4.2 × 102 kcal 
D)  4.0 × 102 kcal

Question 10

Complete the following sentence using the terms provided below. 
nutritive value
carbohydrate
protein
fat
Calorie
kilocalorie
energy content
-_______________________refers to the characteristic amount of heat produced when a nutrient is burned.

Accepted Answer

Nutritive

Question 11

Copper reacts with nitric acid as given in the following reaction.   Predict the effect of the given change on the rate of the reaction by filling in the blank with one of the following terms. 
increase
decrease
no effect
-The temperature of the reaction is decreased. _____________________

Accepted Answer

The answer of Copper reacts with nitric acid as given...

Question 12

Photosynthesis and respiration are linked to each other in the nitrogen cycle.

Accepted Answer

A) True 
 B)False

Question 13

One Hawaiian sweet roll contains:
2.5 g fat
18 g carbohydrate
4.0 g protein
The total energy content of four rolls (to two significant figures) is 440 Calories.

Accepted Answer

A) True 
 B)False

Question 14

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 15

An aqueous solution of sodium nitrate (NaNO3) is used in a reaction. The following should be used in the chemical equation for the reaction. NaNO3(l)

Accepted Answer

A) True 
 B)False

Question 16

Complete each of the following sentences using one of the terms listed below.
 physical change
chemical change
reactant
product
coefficient
physical state
-In the image below hydrogen sulfide represents the________________.

Accepted Answer

The answer of Complete each of the following sentences using...

Question 17

The reactants in a chemical reaction are analogous to which of the following?

Accepted Answer

A)  a baked cake 
B)  the flour, eggs, chocolate used to bake a cake 
C)  the cake pan. 
D)  the heat of the oven 
A)  a baked cake 
B)  the flour, eggs, chocolate used to bake a cake 
C)  the cake pan. 
D)  the heat of the oven

Question 18

When magnesium reacts with nitrogen, the reaction container becomes very hot. The ΔH for this reaction will have a positive sign.

Accepted Answer

A) True 
 B)False

Question 19

Complete the following sentence using the terms provided below. 
nutritive value
carbohydrate
protein
fat
Calorie
kilocalorie
energy content
-Per gram ________________________ produces the largest amount of energy when burned.

Accepted Answer

The answer of Complete the following sentence using the terms...

Question 20

Complete the following sentence using the terms provided below. 
nutritive value
carbohydrate
protein
fat
Calorie
kilocalorie
energy content
-The following would be classified as a _______________________reaction.

Accepted Answer

combustion

When you inhale (breathe in), oxygen is entering your respiratory system and when you exhale (breathe out), carbon dioxide is leaving your respiratory system.

Overall the reactions that occur during respiration can be classified as combustion reactions.

Consider the following reaction: This reaction:

Complete each of the following sentences using one of the terms listed below. physical change chemical change reactant product coefficient physical state -Consider the image below. If the balanced equation for this reaction were written oxygen would have a ___________ of 1.

Consider the following reaction. NaOH(aq) + H₂SO₄(aq) → Na₂SO₄(aq) + H₂O(l) Which of the following represents the correct mass relationships, respectively, across the balanced equation?

Which of the following reactions is correctly balanced?

When the equation below is properly balanced, what coefficient is of KClO₃? KClO₃ → KCl + O₂

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

If the 'Nutrition Facts' on a food label contains Total Fat 5.0 g, Total Carbohydrate 35 g, and Total Protein 7.0 g, how many Total kcal would be needed for the average healthy person to burn this food item?

Complete the following sentence using the terms provided below. nutritive value carbohydrate protein fat Calorie kilocalorie energy content -_______________________refers to the characteristic amount of heat produced when a nutrient is burned.

Copper reacts with nitric acid as given in the following reaction. Predict the effect of the given change on the rate of the reaction by filling in the blank with one of the following terms. increase decrease no effect -The temperature of the reaction is decreased. _____________________

Photosynthesis and respiration are linked to each other in the nitrogen cycle.

One Hawaiian sweet roll contains: 2.5 g fat 18 g carbohydrate 4.0 g protein The total energy content of four rolls (to two significant figures) is 440 Calories.

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

An aqueous solution of sodium nitrate (NaNO₃) is used in a reaction. The following should be used in the chemical equation for the reaction. NaNO₃(l)

Complete each of the following sentences using one of the terms listed below. physical change chemical change reactant product coefficient physical state -In the image below hydrogen sulfide represents the________________.

The reactants in a chemical reaction are analogous to which of the following?

When magnesium reacts with nitrogen, the reaction container becomes very hot. The ΔH for this reaction will have a positive sign.

Complete the following sentence using the terms provided below. nutritive value carbohydrate protein fat Calorie kilocalorie energy content -Per gram ________________________ produces the largest amount of energy when burned.

Complete the following sentence using the terms provided below. nutritive value carbohydrate protein fat Calorie kilocalorie energy content -The following would be classified as a _______________________reaction.

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

When you inhale (breathe in), oxygen is entering your respiratory system and when you exhale (breathe out), carbon dioxide is leaving your respiratory system.

Overall the reactions that occur during respiration can be classified as combustion reactions.

Consider the following reaction: This reaction:

Complete each of the following sentences using one of the terms listed below. physical change chemical change reactant product coefficient physical state -Consider the image below. If the balanced equation for this reaction were written oxygen would have a ___________ of 1.

Consider the following reaction. NaOH(aq) + H2SO4(aq) → Na2SO4(aq) + H2O(l) Which of the following represents the correct mass relationships, respectively, across the balanced equation?

Which of the following reactions is correctly balanced?

When the equation below is properly balanced, what coefficient is of KClO3? KClO3 → KCl + O2

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

If the 'Nutrition Facts' on a food label contains Total Fat 5.0 g, Total Carbohydrate 35 g, and Total Protein 7.0 g, how many Total kcal would be needed for the average healthy person to burn this food item?

Complete the following sentence using the terms provided below. nutritive value carbohydrate protein fat Calorie kilocalorie energy content -_______________________refers to the characteristic amount of heat produced when a nutrient is burned.

Copper reacts with nitric acid as given in the following reaction. Predict the effect of the given change on the rate of the reaction by filling in the blank with one of the following terms. increase decrease no effect -The temperature of the reaction is decreased. _____________________

Photosynthesis and respiration are linked to each other in the nitrogen cycle.

One Hawaiian sweet roll contains: 2.5 g fat 18 g carbohydrate 4.0 g protein The total energy content of four rolls (to two significant figures) is 440 Calories.

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

An aqueous solution of sodium nitrate (NaNO3) is used in a reaction. The following should be used in the chemical equation for the reaction. NaNO3(l)

Complete each of the following sentences using one of the terms listed below. physical change chemical change reactant product coefficient physical state -In the image below hydrogen sulfide represents the________________.

The reactants in a chemical reaction are analogous to which of the following?

When magnesium reacts with nitrogen, the reaction container becomes very hot. The ΔH for this reaction will have a positive sign.

Complete the following sentence using the terms provided below. nutritive value carbohydrate protein fat Calorie kilocalorie energy content -Per gram ________________________ produces the largest amount of energy when burned.

Complete the following sentence using the terms provided below. nutritive value carbohydrate protein fat Calorie kilocalorie energy content -The following would be classified as a _______________________reaction.

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

Consider the following reaction. NaOH(aq) + H₂SO₄(aq) → Na₂SO₄(aq) + H₂O(l) Which of the following represents the correct mass relationships, respectively, across the balanced equation?

When the equation below is properly balanced, what coefficient is of KClO₃? KClO₃ → KCl + O₂

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

An aqueous solution of sodium nitrate (NaNO₃) is used in a reaction. The following should be used in the chemical equation for the reaction. NaNO₃(l)