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Mini Review Matter, Periodic Table, Naming, Rxn, Mole, & Stoichiometry Flashcards | StudBud
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Mini Review Matter, Periodic Table, Naming, Rxn, Mole, & Stoichiometry
When diluting an acid,
This picture demonstrates
Mini Review Matter, Periodic Table, Naming, Rxn, Mole, & Stoichiometry
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Review 1st Semester
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Answers
1
This picture demonstrates
a physical change
a chemical change
filtration
evaporation
2
When diluting an acid,
add water to the acid.
add acid to the base.
add acid to the water
have your partner do it.
3
What is an isotope?
a type of triangle
an atom of the same type but different number of neutrons
an atom of the same type but different number of electrons
an atom of the same type but different number of protons
4
What is the formula for iron (III) oxide?
Fe2O
FeO
Fe2O3
Fe3O
5
If the % yield was 56.34% and 71.9 g of product was collected, what is the theoretical yield?
140.4 g
405.1 g
127.6 g
6
Given BaCl
2
+ K
3
PO
4
--> Ba
3
(PO
4
)
2
+ KCl, what is the mole ratio for BaCl
2
and K
3
PO
4
?
2 BaCl2 to 2 K3PO4
3 BaCl2 to 2 K3PO4
3 BaCl2 to 1 K3PO4
1 BaCl2 to 6 K3PO4
7
In the picture, what does the number 29 mean?
number of electons in Cu ion
number of neutrons in Cu
number of protons in Cu
number of valence electrons
8
Which is not a property/characteristic of the halogen family
salt-forming
most reactive metals
very high electrognegativities
most are diatomic
9
Name this SO
3
monosulfur trioxide
sulfite
sodium oxide
sulfur trioxide
10
What is the formula for dinitrogen pentoxide
N2O5
N2O4
N5O2
2 NO4
11
Name this compound SnCl
2
.
tin (IV) chloride
tin chloride
tin dichloride
tin (II) chloride
12
What is the formula for calcium acetate?
Ca(C2H3O2)
Ca2(C2H3O2)
Ca(C2H3O2)3
Ca(C2H3O2)2
13
Type of reaction? Fe + AlBr
3
--> Al + FeBr
2
synthesis
decomposition
double replacement
single replacement
14
Name this compound H
3
PO
4
phosphorous acid
hydrophosphoric acid
phosphoric acid
hydrogen phosphur oxide
15
How many grams CH
4
if you have 546 L of it at STP?
24.4 g CH4
34.0 g CH4
391 g CH4
762 g CH4
16
What is the % yield if the actual yield was 7.902 L and the theoretical yield was 8.013 L?
98.61%
63.32%
1.014%
0.9861%
17
This picture represents
liquid
plasma
gas
solid
18
Lithium, potassium and rubidium belong to
transition metal family
are in different families
alkali earth family
alkali metal family
19
Ionization energy is
amount of energy required to remove an e- from the atom/ion
generally higher with nonmetals than metals
all of these
decreases from top to bottom of periodic table
20
Will this reaction occur and why? Fe + AlBr
3
--> Al + FeBr
2
yes, Fe more reactive than Al
no, Al more reactive than Fe
no, Fe more reactive than Al
yes, Al more reactive than Fe
21
Which of the following is not molecular formula?
CH3COOH
P4O10
C4H9OH
C5O4H9OH
22
Which is the correct arrangement for increasing electronegativity?
Al, O, Cl, Li
Li, Cl, O, Al
O, Cl, Al, Li
Li, Al, Cl, O
23
Balance this equation
NaOH
(aq)
+ H
2
SO
4(l)
-> Na
2
SO
4
+ H
2
O
1,1,1,1
2,1,2,2
2,1,1,2
2,1,2,1
24
Name this compound H
2
S.
sulfuric acid
hydrosulfic acid
sulfurous acid
hydrosulfuric acid
25
Balance Fe + AlBr
3
--> Al + FeBr
2
3, 2, 2, 3
3, 2, 3, 2
1, 3, 3, 2
2, 3, 2, 3
26
A cation is
a cat with static electricity
an ion of an isotope
a positively charged particle
a negatively charged particle
27
beryllium chloride reacts with silver nitrate producing beryllium nitrate and silver chloride
BeCl2 + AgNO3 --> Be(NO3)2 + AgCl
BeCl + AgNO3 --> B(NO3)2 + Ag2Cl
BeCl + SNO3 --> BeNO3 + SCl
BeCl + AgNO2 --> Be(NO2)2 + AgCl
28
C
2
H
4
+ O
2
--> is what type of reaction?
single replacement
double replacement
synthesis
combustion
29
A solution is
an element
heterogeneous mixture
a compound
homogeneous mixture
30
Given CaCl
2
+ K
2
CO
3
--> CaCO
3
+ 2 KCl , how many moles K
2
CO
3
needed if made 3.58 mol KCl
?
1.79 moles K2CO3
3.58 moles K2CO3
2.00 moles K2CO3
7.16 moles K2CO3
31
A period on the Periodic Table
indicates the energy level
indicates the columns
is the name of the chemical group
is the synonym for the transition metals
32
NaCl + F
2
--> NaF + Cl
2
will this reaction occur and why?
no, F2 less reactive than Cl2
yes, F2 more reactive than Cl2
no, Cl2 more reactive than F2
yes, F2 less reactive than Cl2
33
Atomic radii _______ on the periodic table.
increases across from left to right
increases up a family
decreases across from left to right
increases down a family
34
How many moles in 5.92 x 10
25
formula units of (NH
4
)
2
Cr
2
O
7
?
3.56 mol (NH4)2Cr2O7
98.3 mol (NH4)2Cr2O7
2.64 mol (NH4)2Cr2O7
2.35 mol (NH4)2Cr2O7
35
Na
2
CO
3
-> type of reaction and products
decompostion, Na2O + CO2
decomposition, NaO2 + C
decomposition, Na4C + O2
decomposition, Na + CO3
