lamar University

Solutions can exist in all 3 physical states correct answer: Solid: metal alloys (2 or more metals) Gas: Ex: Air — made of nitrogent oxygen and other gases Liquid: this is what we will be primarily discussing in this chapter, mostly solutions where water is the solvent AKA aqueous solutions Nonpolar solvents dissolve_______ correct answer: Nonpolar solutes Polar solvents dissolve______ correct answer: Polar solutes and many iconic solutes Polar correct answer: unequal sharing of...

Atom correct answer: Smallest quantity of matter that retains the properties of matter. Building blocks of all matter Element correct answer: A substance made up of a single type of atom. α Particle correct answer: A positively charged particle consisting of two protons and two neutrons, emitted in radioactive decay or nuclear fission. β Particle correct answer: High-speed electron, especially emitted in radioactive decay γ Rays correct answer: high-energy electromagnetic rad...

Atoms correct answer: the basic building blocks of all matter. The smallest unit of an element that can combine with other elements. Subatomic Particles correct answer: The smaller particles that make up atoms - protons, neutrons and electrons. cathode rays correct answer: streams of electrons that are produced when a high voltage is applied to electrodes in an evacuated tube Radioactivity correct answer: The spontaneous emission of radiation by an unstable atomic nucleus Nuclear...

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...

Elements from opposite sides of the periodic table tend to form what? correct answer: Ionic compounds Which of the following has three significant figures? correct answer: 0.0803 Predict the empirical formula of the ionic compound that forms from aluminum and oxygen? correct answer: Al2O3 Which of the following would be the appropriate pH for a substance that tastes bitter, produces hydroxide ions in solution and ionizes completely(100%)? correct answer: 13 Which one of the compo...

NURSING 4550– NURSING PRACTICE: NURSING LEADERSHIP & MANAGEMENT INSTRUCTIONS & GRADING CRITERIA for PROFESSIONAL NURSING ORGANIZATION ASSIGNMENT (CBSL) DIGITAL PRESENTATION

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In depth notes of each chapter in environmental science throughout the semester

Chapter Notes 1-20

A well written document of the first chapter of the class Environmental Science