Chemistry, 13.01.2020 06:31 angelaisthebest1700
Lead (ll) nitride+ammonium sulfate > lead(ll) sulfate + ammonium nitride
Answers: 2
Chemistry, 22.06.2019 11:40
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) β h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 Β°c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
Chemistry, 22.06.2019 19:30
Awoman's basketball has a circumference between 28.5 and 29.0 inches and a maximum weight of 20 ounces (two significant figures). what are these specifications in units of centimeters and grams?
Answers: 2
Chemistry, 22.06.2019 22:30
What methods could you use to solubilize calcium carbonate
Answers: 1
Chemistry, 22.06.2019 23:00
Which organism develops breathing organism develops breathing organs from pharyngeal arches? shark, spider, sea star, sea horse
Answers: 2
Lead (ll) nitride+ammonium sulfate > lead(ll) sulfate + ammonium nitride...
Mathematics, 06.08.2021 01:00
Computers and Technology, 06.08.2021 01:00
Mathematics, 06.08.2021 01:00
Mathematics, 06.08.2021 01:00
Mathematics, 06.08.2021 01:00
Physics, 06.08.2021 01:00
Mathematics, 06.08.2021 01:00
Mathematics, 06.08.2021 01:00
Computers and Technology, 06.08.2021 01:00
Mathematics, 06.08.2021 01:00