Name utch each diagram with its correct description. diagrams will 0 0 а b 1. pure element - only one type of atom present. __2. mixture of two elements - two types of uncombined atoms present. 3. pure compound - only one type of compound present. 4. mixture of two compounds - two types of compounds present. 5. mixture of a compound and an element.
Write the empirical chemical formula of calcium with a mass percent of 38.8, phosphorus with a mass percent of 20.0, and oxygen with a mass percent of 41.3.