The reaction between zinc metal and hydrochloric acid produces zinc chloride and hydrogen gas. This is an example of a reaction. Zn(s) + 2 HCl(aq) → ZnCl2 (aq) + H2 (g)

Suppose a lab group reports a ppercent yield of sand of 105. is it really possible to collect more sand than was originally represented? what is the possible explanation for the extra product?

Mercury turns to a vapor at 629.88 k. how much heat is lost when 75.0 g of mercury vapor at 650 k condenses to a liquid at 297 k?

What type of context clue you understand the meaning of  quandary?