What is the molarity of a solution that contains 1 mol CaCl2 dissolved in 2 L of solution?

What best discribes the relationship between wavelength and frequency in a electromagnetic wave

An object displaces 652 ml of water. the volume of the object is: 0.652 cm³ 6.52 cm³ 65.2 cm³ 652 cm³

What is the correct name for the compound cocl3? a) cobalt(i) chloride b) cobalt(i) chlorate c) cobalt(ii) chlorate d) cobalt(iii) chloride