3 Chemical Equation
3CaCl2 + 2Na3PO4 → Ca3(PO4)2
Ca3(PO4)2 + 6Naci
Which of the following correctly describes the chemical equation above?

Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.