chemistry help please

Jan 6th, 2015
Anonymous
Category:
Science
Price: $5 USD

Question description

The most electronegative element among the following is

A.sodiumB.bromine
C.fluorineD.oxygen

The metal used to recover copper from a solution of copper sulphate is

A.NaB.Ag
C.HgD.Fe

The number of d-electrons in Fe2+ (Z = 26) is not equal to that of

A.p-electrons in Ne(Z = 10)
B.s-electrons in Mg(Z = 12)
C.d-electrons in Fe(Z = 26)
D.p-electrons in CI(Z = 17)

The metallurgical process in which a metal is obtained in a fused state is called

A.smeltingB.roasting
C.calcinationsD.froth floatation

The molecules of which gas have highest speed?

A.H2 at -73oC
B.CH4 at 300 K
C.N2 at 1,027oC
D.O2 at 0oC

Tutor Answer

(Top Tutor) Daniya L
School: University of Virginia
PREMIUM TUTOR

Studypool has helped 1,244,100 students

Review from student
Anonymous
" Outstanding Job!!!! "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1821 tutors are online

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors