How many grams of hydrogen gas (h2) is produced if 10.0 mol of zn are added to hydrochloric acid (hcl) according to the equation: zn+2hcl→zncl2+h2 ?
a.) 20.2 g h2
b.) 10 moles h2
c.) 10.1 g h2
d.) 2.02 g h2

How many liters of hydrogen gas will be produced at stp from the reaction of 7.179×10^23 atoms of magnesium with 54.219g of phosphoric acid (h3po4) the equation is 3mg + 2h3(> mg(po4)2+3h2

Which is an example of the practical pursuit of alchemy? a. forming perfect substances. b. transforming base metals. c. developing metalworking techniques. d. linking spiritual characteristics with material substances.

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull