Which of the following is a non metal that remains liquid at room temperature? a. phosphorous b. bromine c. chlorine d. helium chlorophyll is a naturally occurring chelate compound in which central metal is a. copper b. magnesium c. iron d. calcium

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?

What are the similarities of physical and chemical change ?

Part 1: include important facts found through your research. part 2: include your visual display. include your summary of “the chemistry of water” from the national science foundation website. include your experiment. part 3: include responses to the reflection questions.