HW 07ANS
REVIEW QUESTIONS
Chapter 7
Calculate each of the following quantities:
- Number of moles in 112 g of aspirin,
- Mass of 3.82 moles of silver acetate,
- Number of molecules in 1.75 moles of
- Number of molecules in 20.0 g of
molecules
Chemistry 51
5. Classify the type of each of the following reactions:
a)
b)
c)
d)
single replacement
synthesis
6. Balance each of the equations shown below:
a)
b) __2
c)
d)
7. Predict the products and write a balanced equation for each of the following:
a) Decomposition:
b) Combustion:
c) Combination:
d) Double replacement:
5. Classify the type of each of the following reactions:
a)
b)
c)
d)
single replacement
synthesis
6. Balance each of the equations shown below:
a)
b) __2
c)
d)
7. Predict the products and write a balanced equation for each of the following:
a) Decomposition:
b) Combustion:
c) Combination:
d) Double replacement:
Chemistry 51
8. Each of the reactions below occur in the cells of the body. Identify each as endothermic or exothermic:
a) Succinyl
b)
c) Phosphocreatine
9. In each reaction below, identify the bold type substance as oxidized or reduced:
a)
b)
c)
reduced (gain of H)
10. Chromium and oxygen combine to form chromium (III) oxide.
a) Write a balanced equation for this reaction.
8. Each of the reactions below occur in the cells of the body. Identify each as endothermic or exothermic:
a) Succinyl
b)
c) Phosphocreatine
9. In each reaction below, identify the bold type substance as oxidized or reduced:
a)
b)
c)
reduced (gain of H)
10. Chromium and oxygen combine to form chromium (III) oxide.
a) Write a balanced equation for this reaction.
b) How many moles of
c) How many grams of chromium (III) oxide are formed when 24.8 g of Cr react?