Louisiana State University

This study guide provides over 80 verified multiple-choice and short-answer questions with correct answers for HIST 2055 – The History of the United States to 1865, a foundational American history course at Louisiana State University (LSU). Aligned with the 2026 curriculum, this exam resource is designed to support students in mastering early U.S. history concepts for midterm preparation or general course review. The content is organized chronologically and thematically, covering key develo...

This document is a comprehensive midterm exam study guide for EDCI 2030: Teaching, Learning, and Leading in the 21st Century at Louisiana State University (LSU). It features over 120 expert-verified exam questions with correct answers, presented in a concise Q&A flashcard format to support active recall and efficient revision. The content thoroughly covers essential themes in teacher education, including: Educational Standards & Professional Organizations: AFT, NEA, InTASC, NCATE, CAEP, CE...

What is Organic Chemistry? - Answer The study of carbon compounds. What is atomic number (Z)? - Answer The number of protons in the nucleus of an atom. What is mass number (A)? - Answer The total number of protons and neutrons in the nucleus of an atom. What is an isotope? - Answer Molecules that have the same atomic numbers but different mass numbers. What is a cation? - Answer A positively charge ion, has fewer electrons than protons. What is an ani...

meth - Answer 1 eth - Answer 2 prop - Answer 3 but - Answer 4 pent - Answer 5 hex - Answer 6 hept - Answer 7 oct - Answer 8 non - Answer 9 dec - Answer 10 -an - Answer all c-c single bonds -en - Answer at least one c-c double bond -yn - Answer at least one c-c triple bond -ane - Answer alkane -ene - Answer alkene

which of the following statements correctly describe the basic principle of VSEPR theory? - Answer each group around a central atom is located as far from the others as possible Rank the following bonds in order of increasing bond length (shortest to longest), based on periodic trends, starting with the shortest bond at the top of the list? H-F H-Se H-O H-S - Answer H-F H-O H-S H-Se when does bond length increase? decrease? - Answer down a group across a period ...

2 consecutive eliminations Products: 2 C=C or 1 Carbon Carbon triple bond Reagents: NaNH2, THF/DMF, heat - Answer Synthesis of Alkynes via consecutive elimination Form alkane from alkene syn addition Reagents: H2, Pd/Pt/Ni - Answer Addition of H2 to alkenes--hydrogenation 1. Alkyne to alkane Reagents: Excess/ H2, Pd/C 2. Lindlar's Catalyst (cis-alkene) Reagents: H2, Lindlar's Catalyst 3. Na or Li, NH3 (liq), -78 degrees C (trans-alkene) Reagents: Na or Li, NH3 ...

Orbital - Answer region of space around the nucleus where electrons are formed aufbau principle - Answer s orbital will be filled before the p orbitals in the same shell Valence electrons - Answer electrons in the outermost shell responsible for all bonding Octet rule - Answer States that atoms lose, gain or share electrons in order to acquire a full set of eight valence electrons Ionic bonds - Answer results from the transfer of electrons from one eleme...

atomic number - Answer the number of protons in the nucleus of an element isotopes - Answer two or more atoms of the same element having the same number of protons in the nucleus but a different number of neutrons have the same atomic number but different mass numbers mass number - Answer total number of protons and neutrons in the nucleus atomic weight - Answer the weighted average of the mass of all isotopes of a particular element (amu) heteroatom - Answer...

what does calculating degree of unsaturation (or unsaturated index) from a molecular formula determine? - Answer the number of pi bonds and rings in a molecule what is the unsaturated index formula? - Answer 2C + 2 - H - X + N / 2 what is the IUPAC nomenclature of alkenes and cycloalkenes? - Answer - use longest carbon chain name (containing the double bond) for the parent name followed by "ene" - number the longest carbon chain so that the alkene has the lowest nu...

cranes and derricks installed on floating surfaces must have a ____ placed where it can be easily seen by the proctors. - Answer Boom angel indicator when is it acceptable to use a personnel platform to raise and lower workers - Answer Other means of access would be more dangerous or impossible. Which of the following is an example of conditions that may limit the load rating of a crane? - Answer The crane is not on level ground The ____ oversees and directs all crane ...