Given the following reaction:
Mg(OH)2+ 2HCI=MgCl2+ 2H2O
How many grams of MgCl2 will be produced from 12.0 g of Mg(OH)2 and 42.0 g of HCl?
grams (round to three significant figures)

Embryos of different species look very similar, which shows that the organisms share a ancestor.

Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!

Helium decays to form lithium. which equation correctly describes this decay?