Exam (elaborations)
AAMI INTRO TO CHEMISTRY UNITS1-4 (MIDTERM) EXAM QUESTIONS WITH COMPLETE SOLUTIONS
- Course
- Institution
AAMI INTRO TO CHEMISTRY UNITS1-4 (MIDTERM) EXAM QUESTIONS WITH COMPLETE SOLUTIONS
[Show more]
Content preview
AAMI INTRO TO CHEMISTRY UNITS1-4(MIDTERM) EXAM QUESTIONS WITH
COMPLETE SOLUTIONS
Molecules - Answer-smallest electrically neutral particle of any substance that can
maintain a stable existence.
Monatomic molecules - Answer-one atom in its molecule.
Monatomic molecules - Answer-most elements are...
Monatomic molecules - Answer-Molecules and atoms are the same in this instance.
Diatomic molecules - Answer-exist naturally as 2 atoms bonded together.
covalent bonds - Answer-The bonds that hold diatomic molecules together.
Diatomic molecules - Answer-These molecules are held together by covalent bonds.
The Halogens (Cl2, Br2, F2, I2) as well as H2, N2 and O2. - Answer-Which elements
are diatomic molecules?
2
they are 2 atoms covalently bonded together - Answer-Whenever the halogens and H,
N, and O are written they will have a subscript of?
Because?
Polyatomic molecules (polyatomic ions / radicals) - Answer-are a group of atoms that
are bonded and possess a charge.
Polyatomic molecules (polyatomic ions / radicals) - Answer-molecules with more than 2
atoms.
molecular coefficient - Answer-The number written to the left of the symbol or formula
and applies to the element or entire compound that it is written next to.
molecular coefficient - Answer-is distributed throughout the compound.
molecular coefficient - Answer-Tells the number of molecules in the compound, or the
single elements that are present.
multiply the coefficient and subscript together - Answer-How do we determine the total
number molecules in a compound when there is a subscript and molecular coefficient?
,Molecular weight - Answer-is the sum of all atomic masses that makeup the compound.
that the number is next to. - Answer-When finding the molecular weight of a polyatomic
ion, the subscripts that are inside the parenthesis only apply to the symbol...
85 - Answer-What is the molecular weight for Na(NO3)?
atomic mass: Na=23, N=14, O=16
Periodic table - Answer-A table that shows the elements arranged in order of increasing
atomic number.
Periods - Answer-Horizontal rows of the periodic table
Groups/families - Answer-Vertical columns of the periodic table.
1 - Answer-All of group 1 (Li, Na, K, Rb, Cs, Fr) elements have how many valence
electrons?
noble gases and all of the halogens - Answer-In the last column is the... because they
have similar properties.
left
right - Answer-bold like step line dividing the table, metals to the .... and nonmetals to
the....
metals - Answer-electrons donors; lose electrons to become positively charged ions.
non metals - Answer-electron receivers; gain electrons to form negatively charged ions.
metalloids - Answer-divide metals fron non metals.
metalloids - Answer-located along the step line that divides the periodic table.
B, S, Ge, As, Sb, Te - Answer-Some examples of metalloids include...
metalloids - Answer-contain intermediate properties of metals and nonmetals. Some
properties are metallic and nonmetallic.
Halogens (Cl2, Br2, F2, I2) - Answer-Non metals examples
halogens - Answer-known as salt formers because they combine with many metals to
form a great number of salts.
-1 - Answer-Valence of the Halogens?
, Noble gases (Ar, He, Ne) - Answer-these elements are located in the extreme right
hand column.
0 - Answer-valence of noble gases?
stable - Answer-the noble gases have no valence because they are ...
noble gases - Answer-outer most shell of these elements are already full. The octet is
complete and do not need to gain or lose electrons.
compound - Answer-combination of 2 or more elements chemically combined in
DEFINITE PROPORTIONS by weight.
1)know the symbol
2)know the valence
3) criss cross the valences and drop the "+" and "-" the valences now become the
subscript for the opposite element - Answer-Specific rules that need to be strictly
followed when forming compounds. (3)
subscripts for the opposite element. - Answer-when forming compounds we criss cross
the valences and drop the "+" and "-" the valances now become the....
do not drop them down, they cancel each other out. - Answer-When forming
compounds and the elements have the same number...
more than one possible valence number - Answer-Some elements, particularly the
transition metals have...
+2 valence; ferrous - Answer-When forming compounds, if there is no subscript for Fe,
then we know that we have a Fe with a
radical combinations - Answer-act the same way as element combinations. What is
inside the parenthesis stays inside the parenthesis and what is outside stays outside.
Binary ionic compounds - Answer-compounds made up of 2 elements joined with an
ionic bond.
metal and non metal - Answer-in order for an ionic bond to form there has to be a
combination of a ...
name of 1st element
2nd element with -ide - Answer-how do we write out the name of a binary ionic
compound?
metal - Answer-In binary ionic compounds, the 1st name is always the ....
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller biggdreamer. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67096 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now