Chemistry 131 - Study guides, Class notes & Summaries

HESI A2 ENTRANCE EXAM: READING COMPREHENSION, CHEMISTRY, GRAMMAR, BIOLOGY, VOCABULARY & GENERAL KNOWLEDGE, CRITICAL THINKING, ANATOMY & PHYSIOLOGY AND MATH VERSION 2 (With answers) Reading Comprehension Neurologists and biological psychologists have witnessed a sharp increase in the knowledge and understanding of particular structures of the brain over the past two decades. As technology becomes ever more advanced, scientists are able to isolate the functions of even small regions of ...

NSG 6340 PREDICTOR STUDY GUIDE 2 1. A 37-year-old female patient with a history of a single episode of depression and frequent complaints of PMS is being treated for hypothyroidism. Today she complains of poor concentration and fatigue. Initially, the NP should: a. Question her further 3. Which of the following is an example of secondary prevention? a. Annual influenza vaccination 7. A 35-year old female with a history of mitral valve prolapse is scheduled for routine dental cleaning. Accor...

Stiochiometry correct answer: Greek "Stiochion"= element "Metion"= measure Lavoisier correct answer: Mass is conserved in chemical rxn 2 parts of equation correct answer: Reactant and product Chemical equation for formation of water correct answer: 2H₂+O₂→2H₂O Stiochiometric coefficients correct answer: # in front of chemical formulas; give ratio of reactant and products Law of Conservation of Mass correct answer: Antione Lavoisier Matter cannot be lost in any...

Dalton's Atomic Theory included what 3 ideas? correct answers1. Atoms cannot be created or destroyed 2. All atoms of a given element have identical properties. 3. All atoms of a given element have properties that differ from those of other elements. 4. Compounds are formed when atoms of different elements combine with one another in small whole-number ratios. Atoms consist of three fundamental particles. What are these particles and their charges? correct answersproton (+1), neutron (neut...

Stiochiometry correct answersGreek "Stiochion"= element "Metion"= measure Lavoisier correct answersMass is conserved in chemical rxn 2 parts of equation correct answersReactant and product Chemical equation for formation of water correct answers2H₂+O₂→2H₂O Stiochiometric coefficients correct answers# in front of chemical formulas; give ratio of reactant and products Law of Conservation of Mass correct answersAntione Lavoisier Matter cannot be lost in any chemical rx...

Atomic Structures - correct answer Know all the problems except #7,14,15 When looking at the atomic structure what does the left-hand subscript represent - correct answer Left hand subscript = atomic number When looking at the atomic structure what does the left-hand superscript represent - correct answer The mass number Where on the atomic structure would we find the ionic change (if the isotope has one) - correct answer On the right hand super-script The mass number = a com...

peta- correct answersP, 10^15 tera- correct answersT, 10^12 giga- correct answersG,10^9 mega- correct answersM, 10^6 kilo- correct answersK, 10^3 deca- correct answersda, 10 deci- correct answersd, 10^-1 centi- correct answersc, 10^-2 milli, correct answersm, 10^-3 micro- correct answersmu, 10^-6 nano- correct answersn, 10^-9 pico- correct answersp, 10^-12 femto- correct answersf, 10^-15

Atomic Structures - correct answer Know all the problems except #7,14,15 When looking at the atomic structure what does the left-hand subscript represent - correct answer Left hand subscript = atomic number When looking at the atomic structure what does the left-hand superscript represent - correct answer The mass number Where on the atomic structure would we find the ionic change (if the isotope has one) - correct answer On the right hand super-script The mass number = a com...

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The distance between carbon atoms in ethylene is 134 picometers. Which of the follow expresses this distance in meters? correct answers1.34 x 10^-10 m Acedic acid boils at 244.2 F. What is the boiling point in degrees Celsius? correct answers117.9 C Select the answer with correct number of significant figures for the following calculation: 4.652 g / (15.4 mL - 13.2 mL) correct answers2.1 g/mL Bromine is the only non-metal that is a liquid at room temperature. Consider the isotope bro...

Gas, Liquid, and Solid define the differences between these three main phases of matter. correct answersSolid- fixed shape and fixed volume Liquid- Variable shape/ can flow and fixed volume Gas- Variable shape/ can flow and can change volume (can be made to expand or contract depending on pressure) Define Solvent and Solute correct answersSolvent- the substance into which the solute is dissolved Solute- the substance that was dissolved Main-group element correct answersAll of the ...