Chemistry, 13.10.2020 14:01 karleygirl2870
An element has a mass of 39.2 and an atomic number of 19. How many protons does this element have? How many neutrons? How many electrons?
Answers: 2
Chemistry, 21.06.2019 13:30, gorbyalexis
One of the reactions in a blast furnace used to reduce iron is shown above. how many grams of fe2o3 are required to produce 15.5 g of fe if the reaction occurs in the presence of excess co? a.11.1 g b.22.1 g c.30.0 g d.44.2 g
Answers: 2
Chemistry, 21.06.2019 21:00, 5041
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?
Answers: 1
An element has a mass of 39.2 and an atomic number of 19. How many protons does this element have? H...
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