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Chapter 7: Q. 7.2 (page 220)
What is Avogadro's number
Avogadro's number, which is equal to , is the number of units in one mole of any substance.
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How many grams are in moleof each of the following? ()
a.
b.
c.
Identify the type of reaction for each of the following as combination, decomposition, single replacement, double replacement, or combustion: ()
a. A compound breaks apart into its elements.
b. Copper and bromine form copper() bromide.
c. Iron() sulfite breaks down to iron() oxide and sulfur dioxide.
d. Silver ion from data-custom-editor="chemistry" (aq.) forms a solid with bromide ion from data-custom-editor="chemistry" (aq).
Balance each of the following chemical equations:
Calculate the number of moles in each of the following:
a. gof
b. localid="1653463313267" gof
c. localid="1653463322209" gof
d. localid="1653463332032" gof
e.localid="1653463342745" gof fructose,
a. What is measured by the heat of reaction?
b. In an endothermic reaction, is the energy of the products higher or lower than that of the reactants?
c. Draw an energy diagram for an endothermic reaction.
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