Conceptual Integrated Science
3rd Edition
ISBN: 9780135197394
Author: Hewitt, Paul G., LYONS, Suzanne, (science Teacher), Suchocki, John, Yeh, Jennifer (jennifer Jean)
Publisher: PEARSON EDUCATION (COLLEGE)
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Chapter 11, Problem 4RAT
To determine
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The correct option for the statement. What chemical change occurs when a wax candle burns.
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The volume of a sample of oxygen gas changed from 10 mL to 11 mL as the temperature changed. Is this a chemical or physical change? Why?
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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…
Chapter 11 Solutions
Conceptual Integrated Science
Ch. 11 - Prob. 1RCCCh. 11 - Prob. 2RCCCh. 11 - Prob. 3RCCCh. 11 - Prob. 4RCCCh. 11 - Prob. 5RCCCh. 11 - How are the particles in a solid arranged...Ch. 11 - Which occupies the greatest volume: 1 gram of ice,...Ch. 11 - What is it called when evaporation takes place...Ch. 11 - How is sublimation different from evaporation?Ch. 11 - Prob. 10RCC
Ch. 11 - How much heat is needed to melt 1 gram of ice?...Ch. 11 - What happens to the chemical identity of a...Ch. 11 - What is a physical property? A chemical property?Ch. 11 - What is a chemical bond?Ch. 11 - What changes during a chemical reaction?Ch. 11 - Why is the freezing of water considered to be a...Ch. 11 - Prob. 17RCCCh. 11 - Why is the rusting of iron considered to be a...Ch. 11 - Prob. 19RCCCh. 11 - What is the difference between an element and a...Ch. 11 - How many atoms are in one molecule of H3PO4?Ch. 11 - How many atoms of each element are in one molecule...Ch. 11 - What does the chemical formula of a substance tell...Ch. 11 - Prob. 24RCCCh. 11 - Prob. 25RCCCh. 11 - Prob. 26RCCCh. 11 - What is the chemical formula for the compound...Ch. 11 - Why are common names often used for chemical...Ch. 11 - How soon will nanotechnology give rise to...Ch. 11 - Prob. 30TISCh. 11 - Who is the ultimate expert at nanotechnology?Ch. 11 - Prob. 38TCCh. 11 - Rank these substances in order of increasing...Ch. 11 - Rank the following physical and chemical changes...Ch. 11 - Rank these compounds in order of increasing number...Ch. 11 - How has chemistry influenced our modern...Ch. 11 - While visiting a foreign country, a foreign...Ch. 11 - If someone is able to explain an idea to you using...Ch. 11 - What is the best way to really prove to yourself...Ch. 11 - Prob. 46TECh. 11 - Prob. 47TECh. 11 - What is found between two adjacent molecules of a...Ch. 11 - You combine 50mL of water with 50mL of purified...Ch. 11 - Prob. 50TECh. 11 - Which has stronger attractions among its...Ch. 11 - Prob. 52TECh. 11 - Is it possible for air to be in liquid phase?...Ch. 11 - Prob. 54TECh. 11 - The left most diagram below shows the moving...Ch. 11 - The leftmost diagram here shows two phases of a...Ch. 11 - A cotton ball is dipped in alcohol and wiped...Ch. 11 - A skillet is lined with a thin layer of cooking...Ch. 11 - A cotton ball is dipped in alcohol is wiped across...Ch. 11 - Use exercise 58 as an analogy to describe what...Ch. 11 - Prob. 61TECh. 11 - Prob. 62TECh. 11 - Prob. 63TECh. 11 - Why are physical changes typically easier to...Ch. 11 - Prob. 65TECh. 11 - Prob. 66TECh. 11 - Each night you measure your height just before...Ch. 11 - State whether each of the following is an example...Ch. 11 - State whether each of the following is an example...Ch. 11 - How is sugar dissolving in water an example of a...Ch. 11 - Why is the air over a campfire always moist?Ch. 11 - Prob. 72TECh. 11 - Prob. 73TECh. 11 - Each sphere in the diagrams shown here represents...Ch. 11 - Is aging primarily an example of a physical or a...Ch. 11 - Is nuclear fusion, as described in Chapter 10, an...Ch. 11 - Prob. 77TECh. 11 - Prob. 78TECh. 11 - Oxygen atoms are used to make water molecules....Ch. 11 - Oxygen, O2, is certainly good for you. Does it...Ch. 11 - Prob. 81TECh. 11 - Prob. 82TECh. 11 - Which of the following boxes contains only an...Ch. 11 - Prob. 84TECh. 11 - Prob. 85TECh. 11 - What is the chemical name for a compound with the...Ch. 11 - Prob. 87TECh. 11 - Prob. 88TECh. 11 - Is nanotechnology the result of basic or applied...Ch. 11 - How does a scanning probe microscope differ from...Ch. 11 - People often behave differently in a group...Ch. 11 - Prob. 92TECh. 11 - Medicines, such as pain relievers and...Ch. 11 - Your friend smells cinnamon coming from an...Ch. 11 - The British diplomat, physicist, and...Ch. 11 - Prob. 96TDICh. 11 - A calculator is useful but certainly not exciting....Ch. 11 - How might speculations about potential dangers of...Ch. 11 - Over the past 20 years, the average life...Ch. 11 - Prob. 100TDICh. 11 - Prob. 1RATCh. 11 - The molecules in a small collection of molecules...Ch. 11 - The phase in which atoms and molecules no longer...Ch. 11 - Prob. 4RATCh. 11 - Prob. 5RATCh. 11 - Prob. 6RATCh. 11 - Which is an example of a chemical change? a Water...Ch. 11 - If you burn 50kg of wood and produce 10g of ash,...Ch. 11 - If you have one molecule of TiO2, how many...Ch. 11 - Prob. 10RAT
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