CONCEPTUAL INTEGRATED SCIENCE (PEARSON+
3rd Edition
ISBN: 2818440059223
Author: Hewitt
Publisher: PEARSON+
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Textbook Question
Chapter 13, Problem 39TC
Rank these reaction profiles in order of increasing reaction speed:
(a) (b) (c)
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QUESTION 7 (Start on a new page.)
The airbags in motor vehicles contain the compound sodium azide (NaNs). When a car
crashes into an object, the compound decomposes and the nitrogen inflates the airbag.
The balanced equation for the reaction is as follows:
NaN(s) → 2Na(s) + 3N2(g)
In one such decomposition, 2,53 x 10° molecules of nitrogen are generated.
Calculate the:
7.1
Number of moles of NaN(s) that decomposed
7.2
Volume of N2(g) produced
Assume that the reaction occurs at standard pressure.
QUESTION 8 (Start on a new page.)
Aluminium sulphate is used as a coagulant in water purification. It reacts with sodium
hydroxide to form aluminium hydroxide which drags the impurities as it settles.
The balanced equation for the reaction is:
Al2(SO4)3(aq) + 6NaOH(aq) → 2Al(OH)3(s) + 3Na2SO4(aq)
A chemist at a water purification plant adds 700 g of Al2(SO4)3 to a sample of water.
8.1
Calculate the maximum mass of Al(OH)3 that can be produced from this
mass of Al2(SO4)3.
(4)
E
[7]
(5)
The…
A certain reaction is found to be reactant favored. Which of the following is a correct description of the
reaction?
a) AG° >0, K>1
b) AG° 1
c) AG° >0, K < 1
d) AG° <0, K<1
e) AG = 0, K< 1
Chapter 13 Solutions
CONCEPTUAL INTEGRATED SCIENCE (PEARSON+
Ch. 13 - Prob. 1RCCCh. 13 - Prob. 2RCCCh. 13 - Prob. 3RCCCh. 13 - If it takes 436 kilojoules to break a bond, how...Ch. 13 - What is released by an exothermic reaction?Ch. 13 - What is absorbed by an endothermic reaction?Ch. 13 - Prob. 7RCCCh. 13 - What generally happens to the rate of a chemical...Ch. 13 - Which reactant molecules are the first to pass...Ch. 13 - How is an acid different from a base?
Ch. 13 - When an acid is dissolved in water, what ion does...Ch. 13 - Prob. 12RCCCh. 13 - Are there many hydronium ions in neutral water?Ch. 13 - What is true about the relative concentrations of...Ch. 13 - What does the pH of a solution indicate?Ch. 13 - Prob. 16RCCCh. 13 - What elements have the greatest tendency to behave...Ch. 13 - What happens to a reducing agent as it reduces?Ch. 13 - What metal coats a galvanized nail?Ch. 13 - What is iron forced to accept during cathodic...Ch. 13 - What happens to the polarity of oxygen atoms as...Ch. 13 - What catalyst is effective in the destruction of...Ch. 13 - Prob. 23TISCh. 13 - What net effect does a chemical reaction have on a...Ch. 13 - What is the product of the reaction between carbon...Ch. 13 - Prob. 26TISCh. 13 - Prob. 27TISCh. 13 - A material that tends to lose electrons is put...Ch. 13 - What is the primary difference between a battery...Ch. 13 - Prob. 30TISCh. 13 - Rank these reaction profiles in order of...Ch. 13 - Rank the covalent bonds in order of increasing...Ch. 13 - Review the concept of electronegativity in Section...Ch. 13 - Review the concept of electronegativity in Section...Ch. 13 - Rank these molecules from least oxidized to most...Ch. 13 - Prob. 44TSCh. 13 - Prob. 45TSCh. 13 - When the hydronium ion concentration of a solution...Ch. 13 - When the pH of a solution is 1, the concentration...Ch. 13 - Show that the pH of a solution is 0.301 when its...Ch. 13 - Show that the hydroxide ion concentration of a...Ch. 13 - How can 50g of wood burn to produce more than 50g...Ch. 13 - Balance these equations: a Fe(s)+O2(g)Fe2O3(s) b...Ch. 13 - Balance these equations: a Fe(s)+S(s)Fe2S3(s) b...Ch. 13 - Prob. 53TECh. 13 - Use the following illustration to answer exercises...Ch. 13 - Use the following illustration to answer exercises...Ch. 13 - What changes during a chemical reaction?Ch. 13 - Prob. 58TECh. 13 - Is photosynthesis an exothermic or endothermic...Ch. 13 - Why does blowing into a campfire make the fire...Ch. 13 - In the laboratory, endothermic reactions are...Ch. 13 - Prob. 62TECh. 13 - Why does a glowing splint of wood burn only slowly...Ch. 13 - Prob. 64TECh. 13 - Chew a salt-free soda cracker for a few minutes...Ch. 13 - Prob. 66TECh. 13 - Does the ozone pollution from automobiles help...Ch. 13 - Chlorine is put into the atmosphere by volcanoes...Ch. 13 - Prob. 69TECh. 13 - Prob. 70TECh. 13 - An acid and a base react to form salt, which...Ch. 13 - Identify the acid or base behavior of each...Ch. 13 - Prob. 73TECh. 13 - Prob. 74TECh. 13 - The main component of bleach is sodium...Ch. 13 - Prob. 76TECh. 13 - Prob. 77TECh. 13 - Within a neutral solution of supercritical water...Ch. 13 - What is the concentration of hydronium ions in a...Ch. 13 - Can an acidic solution be made less acidic by...Ch. 13 - How does burning fossil fuels lower the pH of the...Ch. 13 - Bubbling carbon dioxide into water causes the pH...Ch. 13 - Pour vinegar onto beach sand from the Caribbean,...Ch. 13 - What happens to the pH of soda water as it loses...Ch. 13 - Prob. 85TECh. 13 - Prob. 86TECh. 13 - Why is the chlorine atom such a strong oxidizing...Ch. 13 - Prob. 88TECh. 13 - What element behaves as the oxidizing agent in the...Ch. 13 - Hydrogen sulfide, H2S, burns in the presence of...Ch. 13 - Unsaturated fatty acids, such as C12H22O2, react...Ch. 13 - The type of iron that the human body needs for...Ch. 13 - Why is lithium a preferred metal for the making of...Ch. 13 - Chemical equations must be balanced not only in...Ch. 13 - Study question 94 before attempting to balance...Ch. 13 - How does turning on the radio while you are...Ch. 13 - What are some key advantages that a fuel-cell...Ch. 13 - Do our bodies gradually oxidize or reduce the food...Ch. 13 - Pennies manufactured after 1982 are made of zinc...Ch. 13 - Water is 88.88 oxygen by mass. Oxygen is exactly...Ch. 13 - Why is the air over an open flame always moist?Ch. 13 - Upon ingestion, grain alcohol, C2H6O, is...Ch. 13 - Prob. 103TDICh. 13 - Can industries be trusted to self-regulate the...Ch. 13 - In the centralized model for generating...Ch. 13 - Prob. 1RATCh. 13 - Prob. 2RATCh. 13 - How much energy, in kilojoules, is released or...Ch. 13 - The yeast in bread dough feeds on sugar to produce...Ch. 13 - What role do CFCs play in the catalytic...Ch. 13 - What is the relationship between the hydroxide ion...Ch. 13 - When the hydronium ion concentration equals 1 mole...Ch. 13 - Prob. 8RATCh. 13 - Why does a battery that has thick zinc walls last...Ch. 13 - What element is oxidized in this equation and what...
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