a. He
b. Be
Chemistry, 02.12.2021 20:20 johnjon1300
Determine the highest occupied energy level in the
following elements:
a. He
b. Be
C. Al
d. Ca
e. Sn
Answers: 1
Another question on Chemistry
Chemistry, 22.06.2019 05:50
Calculate the number of molecules present in 0.750 mol of mgo.
Answers: 3
Chemistry, 22.06.2019 06:00
Match the name of the following compound: mgso4 ยท h2omagnesium sulfate monohydratemagnesium (ii) sulfate monohydratemagnesium (ii) sulfate hydratemagnesium sulfate hydrate
Answers: 1
Chemistry, 22.06.2019 10:30
Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ยฝo2(g) โ mgo(s) + 146 kcal/mole h2(g) + ยฝo2(g) โ h2o(g), ฮดh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?
Answers: 3
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) โ h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 ยฐc. 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
You know the right answer?
Determine the highest occupied energy level in the
following elements:
a. He
b. Be
a. He
b. Be
Questions
