Is adding chocolate syrup to milk a chemical or physical change?

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

How many neutrons does an element have if its atomic number is 50 and its mass number is 166

Two liquids are poured into a beaker. after a few seconds, the beaker becomes warm. which of the following best describes this reaction? a. an exothermic reaction b. a decomposition reaction c. an endothermic reaction d. a single-displacement reaction