translate the following chemical reactions and write as a balanced chemical equa

Question

translate the following chemical reactions and write as a balanced chemical equation. Use a periodic table and a polyatomic ion list as references. Be sure to include phase labels on all reactants and products.

1.) Sodium metal can be obtained by heating solid sodium carbonate with carbon. carbon monoxide is produced as an additional product.

2.) When aqueous solutions of sodium hydroxide and lead(II) nitrate are mixed, a precipitate (solid) of lead (II) hydroxide forms. Assume a double displacement reaction to find the other product formula, which remains dissolved.

3.) Heptane, C7H16, is a likely component of gasoline. Like any hydrocarbon, heptane burns with oxygen and produces carbon dioxide and water. (When writing phase labels, think about these questions: Is water present in gasoline? When burning something, large amounts of heat are produced, what happens to the states of the products?)

4.) An acid and a base will mix together to form water an a salt (any ionic compound- not necessarily table salt) with a double displacement neutralization reaction. Write an equation for the neutralization between sulfuric acid, H2SO4, and the base, potassium hydroxide.

Explanation / Answer

1.)

Na2CO3 (aq) + 2C (s) ------------------------> 2 Na (vapour) + 3CO (g)

2)

2 NaOH (aq) + Pb (NO3)2 (aq) ---------------------------> Pb(OH)2 (s) + 2 NaNO3 (aq)

3)

C7H16 (g)+ 11 O2 (g)---------------------> 7 CO2(g) + 8 H2O(g)

4 )

H2SO4 (aq) + KOH (aq) ----------------------> K2SO4 (aq) + 2 H2O (l)

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