Chemistry, 08.12.2021 16:20 sadielebaron
The second ionization energy is highest in case of a) Sulphur b) Argon c) Calcium d) Magnesium and why?
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) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °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 15:00
Many ionic compounds and a few highly polar covalent compounds are because they completely ionize in water to create a solution filled with charged ions that can conduct an electric current.
Answers: 1
Chemistry, 23.06.2019 06:00
Robert leaves a chocolate bar in his car while attending school all day. when he goes to his car in the afternoon, the bat has changed into gooey liquid. what happened to the chocolate bar
Answers: 1
The second ionization energy is highest in case of a) Sulphur b) Argon c) Calcium d) Magnesium and w...
Mathematics, 01.02.2021 20:50
Health, 01.02.2021 20:50
Mathematics, 01.02.2021 20:50
Mathematics, 01.02.2021 20:50
Mathematics, 01.02.2021 20:50
Chemistry, 01.02.2021 20:50
Mathematics, 01.02.2021 20:50
English, 01.02.2021 20:50
Chemistry, 01.02.2021 20:50