The balanced chemical equation represent the reaction between zinc (Zn) and hydrochloric acid (HCI). Zn + 2HCl + H2 + ZnCl2
At STP, how many liters of hydrogen gas (Hz) will be produced if 31.2 g of zinc is allowed to react with excess
hydrochloric acid?
A 2.82L
B 4.30 L
C 9.66 L
D 10.7 L

Acompound is found to contain 6.1% hydrogen and 93.9% oxygen. find it’s empirical formula.

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?

Amixture with the same composition throughout is!