You are given three materials in the form of solutions –citric acid, magnesium hydroxide and sodium sulphate. Describe how you will classify the substances as acidic, basic and neutral using purple cabbage
solution

Smog is the term used to describe the combination of fog and smoke

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

You have 125g of a certain seasoning and are told that it contains 76.0 g of salt what is the percentage of salt by mass in this seasoning