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CHEM 100 EXAM 2 REVIEW Flashcards | StudBud
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CHEM 100 EXAM 2 REVIEW
CHEM 100 EXAM 2 REVIEW
31 terms
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Ch 6, 4, 5
Flashcards
31 cards
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Practice quiz
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Host live
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Questions
31
Answers
1
You have to memorize the 5 gas laws and the quantities that they relate for the exam
False
True
2
5.01 g of sulfurous acid react completely with excess sodium hydroxide. How much water in grams are produced?
1.10 g H2O
2.20 g H2O
5.49 g H2O
2.51 g H2O
3
Sulfurous acid reacts with sodium hydroxide to form a new compound and a byproduct. What is the full, balanced reaction?
H_2SO_3+NaOH→Na_2SO_3+2H_2O
H_2SO_4+2NaOH→NaSO_4+2H_2O
H_2SO_3+NaOH→Na_2SO_3+H_2O
H_2SO_3+2NaOH→Na_2SO_3+2H_2O
4
The correct answer is ____
All of the Above
None of the above
Not blue
Not green
5
Determine the oxidation numbers of the elements in the following compounds: H
2
O, PCl
5
I forgot how to determine oxidation numbers :(
H: +1, O: +2, P: +5, Cl: -1
H: +2, O: -2, P: +5, Cl: -5
H: +1, O: -2, P: +5, Cl: -1
6
Determine the oxidation number of Silicon in HSi
2
O
5
-
+1
+3
+5
+4
7
What is the name of the instrument being played in the previous question's photo?
Glockenspiel
Xylophone
Marimba
Vibraphone
8
How many atoms of hydrogen are in 10.00g of hydrogen gas?
2.987\times10^{24}
5.974\times10^{24}
8.237\times10^{-24}
I don't know the answer but I still want points
9
WHAT TIME/WHERE IS YOUR EXAM THIS WEEK?
None of the answers are correct
FRIDAY 10/29 FROM 2:00-10:00PM ON ZOOM
FRIDAY-SATURDAY 2:00-2:00PM ONLINE
wrong
10
blah blah chemistry blah blah (question box is required)
15 L
4.54 L
1.65 L
69.0 L
11
The molecular mass of the acetate anion is 80.052 (or 80.043)
False
True
12
The oxidation number of Sulfur in SO
4
2-
is +6
True
False
13
PV=nRT
331\degree C
57.6\degree C
37.5\degree C
48.9\degree C
14
Bio/life science majors, if the problem is factually inaccurate, kindly refrain from exposing me. Thank you.
C6H12O6
C3H6O3
CH2O
C6H6O6
15
What are the name of the two compounds formed in the balanced reaction from the previous question?
Sodium Sulfite and Dihydrogen Monoxide
Sodium Sulfite and Water
I need to review chemical nomenclature
Sodium Sulfate and Water
16
OIL RIG stands for . . .
Oxidation is loss, reduction is gain
I can't think of any else
Losing electrons: oxidation, gaining electrons: reduction
octopus inserts lighter right in gas
17
Which element is oxidized? What is the oxidizing agent?
K is oxidized, it is also the oxidizing agent
K is oxidized, Ba is the oxidizing agent
Ba is the oxidized, Cl is the oxidizing agent
K is oxidized, Cl is the oxidizing agent
18
The sum of the oxidation numbers in a compound must equal the compound's net charge
False
True
19
9.021\times10^3g of Ethane (C
2
H
6
) combusts in ideal conditions to produce how many kg of CO
2
?
0.01363 kg
26.41 kg
26410 kg
13.63 kg
20
The five types of reactions are _____
Campbell's tomato soup
single/double/triple replacement, decomposition, and combination
single/double replacement, decomposition, synthesis, and combustion
single/double replacement, decomposition, combination, and combustion
21
The oxidation number of an element in its natural state ("floating") is zero.
True
False
22
The Ideal Gas Constant R = 0.0821 has units of
\frac{L⋅mol}{atm⋅\degree C}
\frac{L⋅atm}{mol⋅K}
\frac{L⋅atm}{mol⋅\degree C}
\frac{L⋅mol}{atm⋅K}
23
The 5 gas laws are . . .
Boyle, Charles, Lavoisier, Gay-Lussac, and Dalton's Law
Boyle, Charles, Gay-Lussac, Avogadro, and Combined Gas Laws
Boyle, Charles, Gay-Lussac, Hess, and Rhydberg Gas Laws
Boyles, Gay-Lussac, Lavoisier, Dalton, and Avogadro's Gas Laws
24
Determine the empirical formula for a compound that is 3.662% carbon and 96.38% bromine by weight.
CBr
dunno what I am dooing (you'll still get points for admitting this :) )
CBr4
CBr3
25
Cloud's favorite halloween candy is
Whey Protein
Baby Ruth
Reese's Peanut Butter Cups
Left Twix
26
PV=nRT
1.03 moles
1.03
15.1
15.1 moles
27
To convert from mass of one compound to the mass of another, you need the mole ratios and avogadro's number
False
True
28
Knowing Cloud's major, what topic is he most likely interested in studying
water color painting
how to knit/sew
aerodynamics of a cow
capcitors and circuitry
29
Cloud's current favorite song(s) is
Agnes by Glass Animals
Yummy! by Weekly
Last Call by Logic
Zigeunerweisen, Op. 20 by Sarasate
30
Standard Temperature and Pressure (STP) states that 'T' and 'P' are ____ and ____ respectively
273 K and 1 bar
273 K and 1 atm
0\degree C and 1 atm
1\degree C and 0.0 atm
31
A tank of propane is cooled to one third of its initial temperature. By what factor has the pressure changed?
Pressure is not affected
2
3
1/3
