Which of the following is an example of a chemical change? \( \begin{array}{l}\text { A. A mixture forming } \\ \text { B. A liquid evaporating } \\ \text { C. A solid dissolving } \\ \text { D. A precipitate forming }\end{array} \)

Concentrated HCl is 12.0 M . Determine the volume in mL of the concentrated solution required to produce 5500 mL of 0.250 M HCl .

Identify the reaction type for the reaction shown below: \( \mathrm{Cr}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}+\mathrm{H}_{2} \) Single Displacement. Precipitation Neutralization Synthesis/Combination Decomposition

Identify the reaction type for the reaction shown below: \( \mathrm{Na}+\mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{NaOH}+\mathrm{H}_{2} \)

Concentrated NaOH is 19.0 M . Determine the volume in mL of the concentrated solutio required to produce 1800 mL of 1.77 M NaOH

Identify the reaction type for the reaction shown below: \( \mathrm{Cr}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}+\mathrm{H}_{2} \)