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Chapter 10
Chemical Reactions

10-02

Labeled

Title
Magnesium oxidation
Caption
The figure shows the formation of magnesium oxide. (a) A magnesium strip is starting to burn in the presence of oxygen. Magnesium and oxygen molecules are illustrated below the photo. (b) The chemical reaction produces magnesium oxide, a white powder, as illustrated below the photo.
Keywords
magnesium, oxygen, oxide, burn, chemical reaction
10-03

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Title
Magnesium oxidation reaction
Caption
Two atoms of magnesium react with one molecule of oxygen gas to produce two formula units of magnesium oxide. Matter is neither created or destroyed.
Keywords
magnesium, oxygen, oxide, chemical reaction
10-04

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Title
Hydrogen and oxygen reaction
Caption
Igniting a 2:1 mixture of hydrogen gas and oxygen gas causes an explosion that is accompanied by a loud bang.
Keywords
hydrogen, oxygen, chemical reaction, explosion
10-06

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Title
Unbalanced scale, H2 + O2 = H2O
Caption
The figure shows an analogy between an unbalanced scale and an unbalanced chemical equation, H2 + O2 = H2O (not balanced). In the diagram, there are 2 H's on the left and 2 H's on the right, but there are 2 O's on the left and only 1 O on the right. To be balanced, there must be an equal number of atoms of each element on both sides.
Keywords
hydrogen, oxygen, chemical reaction, balance
10-07

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Title
Unbalanced scale, H2 + O2 = 2 H2O
Caption
The figure shows an analogy between an unbalanced scale and an unbalanced chemical equation, H2 + O2 = 2 H2O (not balanced). In the diagram, there are 2 O's on the left and 2 O's on the right, but there are 2 H's on the left and 4 H's on the right. To be balanced, there must be an equal number of atoms of each element on both sides.
Keywords
hydrogen, oxygen, chemical reaction, balance
10-08

Labeled

Title
Balanced scale, 2 H2 + O2 = 2 H2O
Caption
The figure shows an analogy between a balanced scale and a balanced chemical equation, 2 H2 + O2 = 2 H2O (balanced). In the diagram, there are 4 H's on the left and 4 H's on the right, and there are 2 O's on the left and 2 O's on the right. To be balanced, there must be an equal number of atoms of each element on both sides.
Keywords
hydrogen, oxygen, chemical reaction, balance
10-09

Labeled

Title
Balancing a hydrogen and nitrogen reaction
Caption
To balance the equation for the reaction of H2(g) with N2(g), first place the correct formulas for reactants on the left and the correct formula for ammonia, the product, on the right. If we double the amount of NH3(g) on the right and triple the H2(g) on the left, the equation will be balanced with two nitrogen atoms and six hydrogen atoms on each side. The balanced equation is written N2 + 3 H2 --> 2 NH3.
Keywords
hydrogen, nitrogen, ammonia, chemical reaction, balance
10-13c

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Title
Electrolysis of water apparatus
Caption
Laboratory setup for the electrolysis of water. 2 H2O --> 2 H2 + O2. During electrolysis, water decomposes in the presence of a direct current to produce two volumes of hydrogen gas and one volume of oxygen gas. The hydrogen to oxygen mole ratio is also 2:1.
Keywords
water, oxygen, hydrogen, electrolysis, decomposition, synthesis
10-13a

Labeled

Title
Electrolysis of water experiment
Caption
The photograph shows an apparatus for the electrolysis of water. By placing a 9-volt battery in water, bubbles of H2 and O2 are produced. The reaction for the electrolysis of water is 2 H2O --> 2 H2 + O2. During electrolysis, water decomposes in the presence of a direct current to produce two volumes of hydrogen gas and one volume of oxygen gas. The hydrogen to oxygen mole ratio is also 2:1.
Keywords
water, oxygen, hydrogen, electrolysis, decomposition, synthesis
10-19T01

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Title
Arrow for tabular chart
Caption
The arrow says "Relative ease of oxidation."
Keywords
arrow, oxidation, ease
10-22

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Title
Lead iodide precipitate
Caption
The photos show clear solutions of (a) lead(II) nitrate potassium iodide react (b) to form a yellow precipitate of lead(II) iodide. Potassium ions and nitrate ions remain in solution.
Keywords
lead nitrate, potassium iodide, lead iodide, precipitate, insoluble

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Title
Temperature Dependence of Equilibrium
Caption
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Title
Flame tests for metals
Caption
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Title
Formation of Aluminum Bromide
Caption
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Title
Formation of silver crystals
Caption
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Title
Formation of Sodium Chloride
Caption
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Title
Formation of Water
Caption
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Title
Precipitation Reactions
Caption
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Title
Reactions with oxygen
Caption
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Title
Redox chemistry of iron and copper
Caption
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Title
Sodium and Potassium in Water
Caption
Keywords

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