Chapter 8: Problem 14
In balancing a chemical equation, why can you change coefficients, but not subscripts?
Chapter 8: Problem 14
In balancing a chemical equation, why can you change coefficients, but not subscripts?
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Get started for freeDescribe the relationship between a synthesis reaction and a decomposition reaction.
How does a coefficient in front of a formula affect the number of each type of atom in the formula?
Predict the products and write a net ionic equation for each of the following reactions. If no reaction occurs, write "no reaction." $$ \begin{array}{l}{\text { a. } \mathrm{K}_{2} \mathrm{CO}_{3}(a q)+\mathrm{CaCl}_{2}(a q) \longrightarrow} \\ {\text { b. } \mathrm{Na}_{2} \mathrm{SO}_{4}(a q)+\mathrm{AgNO}_{3}(a q) \rightarrow} \\ {\text { c. } \mathrm{NH}_{4} \mathrm{Cl}(a q)+\mathrm{AgNO}_{3}(a q) \rightarrow} \\\ {\text { d. } \mathrm{Pb}(s)+\mathrm{ZnCl}_{2}(a q) \rightarrow}\end{array} $$
Write an unbalanced chemical equation for each of the following. $$\begin{array}{l}{\text { a. Aluminum reacts with oxygen to produce }} \\\ {\text { aluminum oxide. }} \\ {\text { b. Phosphoric acid, } \mathrm{H}_{3} \mathrm{PO}_{4} \text { , is produced }} \\ {\text { through the reaction between tetraphosphorus}} \\ {\text { decoxide and water. }}\end{array}$$
Calcium oxide, \(\mathrm{CaO}\) , is an ingredient in cement mixes. When water is added, the mixture warms up and calcium hydroxide, \(\mathrm{Ca}(\mathrm{OH})_{2}\) , forms. $$\begin{array}{l}{\text { a. Is there any evidence of a chemical }} \\\ {\text { reaction? }} \\ {\text { b. In the reaction above, how can you prove }} \\ {\text { that a chemical reaction has taken place? }}\end{array}$$
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