Demetrius
On this page, you find all documents, package deals, and flashcards offered by seller Demetrius.
- 4555
- 0
- 168
Community
- Followers
- Following
81 Reviews received
4725 items
Chem 230 Exam 4 Questions With Complete Solutions
What is the symbol for a proton? 
P can also be replaced with an H 
 
What is the symbol for a neutron? 
 
What is the symbol for an electron? 
e can also be replaced with a β 
 
What is the symbol for a positron? 
e can also be replaced with a β 
 
What is the symbol for an α particle? 
He can also be replaced with an α 
 
What is the symbol for a gamma particle? 
 
What is the charge on an alpha ray? 
2+ 
What is the charge on a beta ray? 
1- 
What is the charge on a gamma ray? 
0 
W...
- Package deal
- Exam (elaborations)
- • 17 pages •
What is the symbol for a proton? 
P can also be replaced with an H 
 
What is the symbol for a neutron? 
 
What is the symbol for an electron? 
e can also be replaced with a β 
 
What is the symbol for a positron? 
e can also be replaced with a β 
 
What is the symbol for an α particle? 
He can also be replaced with an α 
 
What is the symbol for a gamma particle? 
 
What is the charge on an alpha ray? 
2+ 
What is the charge on a beta ray? 
1- 
What is the charge on a gamma ray? 
0 
W...
Chem 230 Exam 3 Questions And Answers With Complete Solutions.
Gases are more soluble in _______ water. correct answer: cold 
 
Is the gas to aqueous reaction endo or exothermic? correct answer: Exothermic 
 
What is lattice enthalpy? Its sign of dH? correct answer: The enthalpy change associated with going from solid to gas. It is always endothermic (+dH) 
 
What is the enthalpy of hydration? Its sign of dH? correct answer: Enthalpy change associated with going from gas to aqueous. It is always exothermic (-dH) 
 
What is enthalpy of solution? correct ...
- Package deal
- Exam (elaborations)
- • 4 pages •
Gases are more soluble in _______ water. correct answer: cold 
 
Is the gas to aqueous reaction endo or exothermic? correct answer: Exothermic 
 
What is lattice enthalpy? Its sign of dH? correct answer: The enthalpy change associated with going from solid to gas. It is always endothermic (+dH) 
 
What is the enthalpy of hydration? Its sign of dH? correct answer: Enthalpy change associated with going from gas to aqueous. It is always exothermic (-dH) 
 
What is enthalpy of solution? correct ...
Chemistry 230 Exam 4| 55 Questions | With Complete Solutions
What is named first the cation or anion? correct answer: Cation 
 
How many Ligands are in [Cr(NH3)6](NO3)3 correct answer: 6 
 
How many Ligands are in K[Au(OH)4] correct answer: 4 
 
Oxidation number of the metal in K[Au(OH)4]? correct answer: +3 explanation: hydroxide has a charge of -1, since there are a total of 4 hydroxides the total (-) charge is -4. The charge of K is +1. Therefore the charge of Au must be +3. +4 + (-4)=0 
 
Within a complex ion ligands are named in _____________ ord...
- Package deal
- Exam (elaborations)
- • 7 pages •
What is named first the cation or anion? correct answer: Cation 
 
How many Ligands are in [Cr(NH3)6](NO3)3 correct answer: 6 
 
How many Ligands are in K[Au(OH)4] correct answer: 4 
 
Oxidation number of the metal in K[Au(OH)4]? correct answer: +3 explanation: hydroxide has a charge of -1, since there are a total of 4 hydroxides the total (-) charge is -4. The charge of K is +1. Therefore the charge of Au must be +3. +4 + (-4)=0 
 
Within a complex ion ligands are named in _____________ ord...
CHEM 230 Exam 2 Questions With Complete Solutions
What is the principal form of benzoic acid at pH 8.2 if the pKa value is 4.2 correct answer: So, at pH 4.20, there is a 1:1 mixture of benzoic acid (HA) 
and benzoate ion (A-). At pH = pKa + 1 (= 5.20), the quotient [A-]/[HA] is 10:1. At 
pKa + 2 (= 6.20), the quotient [A-]/[HA] is 100:1. As pH increases, all the way to pKa + 4 the [A-]/[HA] is 10000:1 
 
*The predominant form of benzoic acid at pH 8 is the benzoate anion 
 
For a monoprotic system, the species ___ is the predominant form when ...
- Package deal
- Exam (elaborations)
- • 7 pages •
What is the principal form of benzoic acid at pH 8.2 if the pKa value is 4.2 correct answer: So, at pH 4.20, there is a 1:1 mixture of benzoic acid (HA) 
and benzoate ion (A-). At pH = pKa + 1 (= 5.20), the quotient [A-]/[HA] is 10:1. At 
pKa + 2 (= 6.20), the quotient [A-]/[HA] is 100:1. As pH increases, all the way to pKa + 4 the [A-]/[HA] is 10000:1 
 
*The predominant form of benzoic acid at pH 8 is the benzoate anion 
 
For a monoprotic system, the species ___ is the predominant form when ...
CHEM 230 EXAM 1 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS.
Electronegativity 
A measure of the force of an atom's attraction for the electrons it shares in a chemical bond with another atom 
-increases from left to right 
-increases from bottom to top 
Covalent bond 
Forms when electron pairs are shared between two atoms whose difference in electronegativity is 1.9 or less 
Polar covalent bond 
The more electronegative atom has a partial negative charge, indicated by the 8- 
The less electronegative atom has a partial positive charge, indicated by the ...
- Package deal
- Exam (elaborations)
- • 6 pages •
Electronegativity 
A measure of the force of an atom's attraction for the electrons it shares in a chemical bond with another atom 
-increases from left to right 
-increases from bottom to top 
Covalent bond 
Forms when electron pairs are shared between two atoms whose difference in electronegativity is 1.9 or less 
Polar covalent bond 
The more electronegative atom has a partial negative charge, indicated by the 8- 
The less electronegative atom has a partial positive charge, indicated by the ...
Math 1 EOC Review Flashcards Questions With Complete Solutions
Average Rate of Change and SLOPE 
Mean same thing, 
It's the number in front of x or 
the "m" in front of x 
 
Exponential DECAY graphs 
Decay goes down 
 
Exponential GROWTH graph 
Growth goes up 
 
Midpoint formula 
The point in the middle of a line segment 
 
Parallel lines and slope 
Have the same or equal slopes 
 
Perpendicular lines & slope 
Have negative reciprocal slopes (flipped and sign changed) Ex. 3/2--> -2/3 
 
Domain of a relation 
Domain: the x coordinates, input valu...
- Exam (elaborations)
- • 27 pages •
Average Rate of Change and SLOPE 
Mean same thing, 
It's the number in front of x or 
the "m" in front of x 
 
Exponential DECAY graphs 
Decay goes down 
 
Exponential GROWTH graph 
Growth goes up 
 
Midpoint formula 
The point in the middle of a line segment 
 
Parallel lines and slope 
Have the same or equal slopes 
 
Perpendicular lines & slope 
Have negative reciprocal slopes (flipped and sign changed) Ex. 3/2--> -2/3 
 
Domain of a relation 
Domain: the x coordinates, input valu...
US Government EOC Review Questions With Complete Solutions
document that contains supreme law of the land correct answer: constitution 
 
clause that upholds that the "document" is supreme correct answer: supremacy clause 
 
why is our law considered a living document? correct answer: it can be ammended by the Supreme Court and so while it was written a long time ago it is still being changed to this day 
 
in which articles of the confederation you will find... correct answer: legislative branch 
 
qualifications to be US president correct answer...
- Exam (elaborations)
- • 8 pages •
document that contains supreme law of the land correct answer: constitution 
 
clause that upholds that the "document" is supreme correct answer: supremacy clause 
 
why is our law considered a living document? correct answer: it can be ammended by the Supreme Court and so while it was written a long time ago it is still being changed to this day 
 
in which articles of the confederation you will find... correct answer: legislative branch 
 
qualifications to be US president correct answer...
USH EOC Review| 152 Questions| With Complete Solutions
Abolitionistist correct answer: An individual opposed to slavery 
 
Affirmative action correct answer: Various governmental policies that address discrimination against women and minority groups 
 
Adams-Onis Treaty correct answer: Treaty negotiated by John Quincy Adams and Luis de Onis, in which Spain ceded Florida and Oregon country to the United States in exchange for sovereignty over Texas 
 
Al-Quada correct answer: International terrorist organization held responsible for the September...
- Exam (elaborations)
- • 19 pages •
Abolitionistist correct answer: An individual opposed to slavery 
 
Affirmative action correct answer: Various governmental policies that address discrimination against women and minority groups 
 
Adams-Onis Treaty correct answer: Treaty negotiated by John Quincy Adams and Luis de Onis, in which Spain ceded Florida and Oregon country to the United States in exchange for sovereignty over Texas 
 
Al-Quada correct answer: International terrorist organization held responsible for the September...
Government EOC Practice (This study set will include terms, government systems, monarchies, economic systems, philosophers, rights, amendments, powers, Missouri's legislative body, branches of government, the articles of confederation, constitutional c
Government EOC Practice (This study set will include terms, government systems, monarchies, economic systems, philosophers, rights, amendments, powers, Missouri's legislative body, branches of government, the articles of confederation, constitutional conventions, federalists papers, executive departments, policies, and application of amendments. I hope this will help you prepare for your Government EOC!)
- Exam (elaborations)
- • 14 pages •
Government EOC Practice (This study set will include terms, government systems, monarchies, economic systems, philosophers, rights, amendments, powers, Missouri's legislative body, branches of government, the articles of confederation, constitutional conventions, federalists papers, executive departments, policies, and application of amendments. I hope this will help you prepare for your Government EOC!)
Civics EOC Review Practice (This is a review for the 7th Grade Civics EOC exam for the state of Florida)
Civics EOC Review Practice (This is a review for the 7th Grade Civics EOC exam for the state of Florida)
- Exam (elaborations)
- • 17 pages •
Civics EOC Review Practice (This is a review for the 7th Grade Civics EOC exam for the state of Florida)
Chem 1020 Lab Final Questions With Complete Solutions.
ICC Vapor Recovery 1| 60 Questions| With Complete Solutions
CHEM 120 Chamberlain EXAM 1 Questions With Complete Solutions
EEG board prep ASAP test prep| 650 Questions| With Complete Solutions
ACAS Best Practice Knowledge Exam 1,2,3,4,5 and 6 Questions And Answers With Complete Solutions