CHM-1045 Lecture Notes - Fall 2017 Lecture 6 - Chromium(III) oxide, Iron(II) chloride, Copper(II) sulfate

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yellowtiger654

20 Sep 2018

School

FSU

Department

Chemistry and Biochemistry

Course

CHM-1045

Professor

Stephanie dillon

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Document Summary

Lecture 6- ions and ionic compounds charge negative charge positive neutral charge. When elements have more or less electrons than protons e- > p+ e- < p+ e- = p+ You can predict the topes of ions each atom will make based on the ato(cid:373)"s locatio(cid:374) i(cid:374) the periodic table. 2 main types of bonding- ionic and covalent. Ionic compounds: compounds that form because of the differences of charges. Name the cation (+ charge ion) first, then name the anion (- charge ion) and remove the ine and change it to ide. Find least common denominator =6, so aluminum +3 goes into 6, 2 times, Al+3 and s-2 makes al2s3 aluminum sulfide so you need 2 aluminums, so make 2 the subscript of al. Do the same for s which is a -2, and that goes into 6 3 times so make 3 the subscript for s. Polyatomic ions - mostly structures of nonmetals with a charge. common:

Related Questions

Questions 4-6 only

Question 1. 1. (TCO 3) Which of the statementsabout transition metals is false? (Points : 2)

Transition metals can gainor lose electrons to form anions or cations.
Transition metals can gain avariable number of electrons to form two or more differentanions.
All transition metals form atleast two different ions.
All of the above statementsare false.
All of the above statementsare true.

Question 2. 2. (TCO 3) Hydrogen combines withoxygen to form water. Which of the statements below best describesthe bond that forms between hydrogen and oxygen? (Points : 2)

It is an ionic bond inwhich the hydrogen and oxygen atoms are held together by sharingelectrons.
It is an ionic bond in whichthe hydrogen atom accepts electrons from the oxygen atom.
It is a covalent bond in whichthe hydrogen atom donates electrons to the oxygen atom.
It is a covalent bond in whichthe hydrogen atom accepts electrons from the oxygen atom.
It is a covalent bond in whichthe hydrogen and oxygen atoms are held together by sharingelectrons.

Question 3. 3. (TCO 3) Which of the followingbonds would you predict to be ionic? (Points : 2)

C-P
Rb-Br
Br-P
S-F
C-H

Question 4. 4. (TCO 3) Which is the overallcharge of a polyatomic ion? (Points : 2)

Polyatomic ions do not havean overall charge.
It is negative.
It is positive.
It may be negative orpositive.
Too little information isgiven to tell.

Question 5. 5. (TCO 3) Trevon has a balloonthat contains 0.01 mole of helium. How many particles of helium arein the balloon? (Points : 2)

6.02
3.01

CHM-1045 Lecture Notes - Fall 2017 Lecture 6 - Chromium(III) oxide, Iron(II) chloride, Copper(II) sulfate

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