Media Portfolio

Chapter 10
Chemical Reactions

10-02

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

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

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

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

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

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

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

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

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

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

10-22

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

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