14. Magnesium, Mg, reacts with sulfuric acid, H2SO4, according to the following chemical reaction. How many moles of H2 are produced by the complete reaction of 230 milligrams (mg) of magnesium, Mg, with sulfuric acid, H2SO4. Must Show work with units and correct number of significant digits. Round atomic weight off periodic table to two decimal places. Mg (s) + H2SO4 (aq) → MgSO4 (aq) + H2 (8)

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14. Magnesium, Mg, reacts with sulfuric acid, H2SO4, according to the following chemical reaction. How many moles of
H2 are produced by the complete reaction of 230 milligrams (mg) of magnesium, Mg, with sulfuric acid, H2SO4.
Must Show work with units and correct number of significant digits. Round atomic weight off periodic table to
two decimal places.
Mg (s) + H2SO4 (aq) > MgSO4 (aq) + H2 (g)
15. Iron ore is converted to iron, Fe, by heating it with coal (carbon, C), and oxygen, O2, according to the following
equation. If the process is run until 3940.0 g of Fe is produced, how many grams of CO2 will also be produced. Must
Show work with units and correct number of significant digits. Round atomic weight off periodic table to two
decimal places.
2 Fe203 (s) + 6 C (s) +
3 02 (g) >
4 Fe(s) + 6 CO2 (e)
16. Benzene, CGH6, reacts with bromine, Br2, to produce bromobenzene, C6H5Br, according to the following equation.
(a) If 60.0 g of benzene, C6HG, is mixed with 135.0 g of bromine, Br2, which is the limiting reagent?
(b) How many grams of bromobenzene, C6HsBr, are formed in the reaction?
C6H6 (I)
+ Br2 (1)
C6HsBr (1)
HBr (g)
17. What is the difference between exothermic and endothermic reactions?
18. Which of these reactions are exothermic and which are endothermic?
2NH3 (8)
H2 (e)
+ 22Kcal > N2 (8)
+ 3H2 (8)
→ 2HF
→ CO218) +
+ 9.80 kcal H2O(g) + CO8)
+ Fe
124 kcal
+
(g)
94.0 Kcal
+ O2 (8)
+ CO2 (8)
Cis)
H 2(8)
4
Transcribed Image Text:14. Magnesium, Mg, reacts with sulfuric acid, H2SO4, according to the following chemical reaction. How many moles of H2 are produced by the complete reaction of 230 milligrams (mg) of magnesium, Mg, with sulfuric acid, H2SO4. Must Show work with units and correct number of significant digits. Round atomic weight off periodic table to two decimal places. Mg (s) + H2SO4 (aq) > MgSO4 (aq) + H2 (g) 15. Iron ore is converted to iron, Fe, by heating it with coal (carbon, C), and oxygen, O2, according to the following equation. If the process is run until 3940.0 g of Fe is produced, how many grams of CO2 will also be produced. Must Show work with units and correct number of significant digits. Round atomic weight off periodic table to two decimal places. 2 Fe203 (s) + 6 C (s) + 3 02 (g) > 4 Fe(s) + 6 CO2 (e) 16. Benzene, CGH6, reacts with bromine, Br2, to produce bromobenzene, C6H5Br, according to the following equation. (a) If 60.0 g of benzene, C6HG, is mixed with 135.0 g of bromine, Br2, which is the limiting reagent? (b) How many grams of bromobenzene, C6HsBr, are formed in the reaction? C6H6 (I) + Br2 (1) C6HsBr (1) HBr (g) 17. What is the difference between exothermic and endothermic reactions? 18. Which of these reactions are exothermic and which are endothermic? 2NH3 (8) H2 (e) + 22Kcal > N2 (8) + 3H2 (8) → 2HF → CO218) + + 9.80 kcal H2O(g) + CO8) + Fe 124 kcal + (g) 94.0 Kcal + O2 (8) + CO2 (8) Cis) H 2(8) 4
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