What two compounds are present in the homogeneous mixture of calcium nitrate and sodium carbonate?
To determine the compounds present in a homogeneous mixture of calcium nitrate (Ca(NO3)2) and sodium carbonate (Na2CO3), we need to understand the chemical reactions that may occur.
1. Let's start by identifying the ions present in each compound:
- Calcium nitrate (Ca(NO3)2) dissociates into calcium ions (Ca2+) and nitrate ions (NO3-).
- Sodium carbonate (Na2CO3) dissociates into sodium ions (Na+) and carbonate ions (CO3^2-).
2. When these two compounds are mixed, a double displacement reaction occurs. Here is the chemical equation:
Ca(NO3)2 + Na2CO3 -> CaCO3 + 2NaNO3
In this reaction, calcium ions (Ca2+) from calcium nitrate combine with carbonate ions (CO3^2-) from sodium carbonate to form calcium carbonate (CaCO3), while sodium ions (Na+) combine with nitrate ions (NO3-) from calcium nitrate to form sodium nitrate (NaNO3).
So, the two compounds present in the homogeneous mixture of calcium nitrate and sodium carbonate are calcium carbonate (CaCO3) and sodium nitrate (NaNO3).