Chemistry Exam-1st Semester (Chapters 1-3), Exams of Advanced Education

Download Chemistry Exam-1st Semester (Chapters 1-3) and more Exams Advanced Education in PDF only on Docsity! Chemistry Exam-1st Semester (Chapters 1-3) chemistry - correct answer-study of composition, structure, and properties of matter, the processes of matter, the process that matter undergoes, and the energy that accompanies these processes mass - correct answer-measure of amount of matter matter - correct answer-anything that has mass and takes up space atom - correct answer-smallest unit of an element that maintains the chemical identity of that element element - correct answer-pure substance that cannot be broken down into simpler, stable substances and is made of one type of atom extensive properties ex) volume, amount of energy, mass - correct answer-depend on amount of matter present intensive properties ex) melting point, boiling point, density, conductivity - correct answer-do not depend on amount of matter present chemical reaction - correct answer-change that alters chemical properties physical reaction - correct answer-change that does not change properties mixture - correct answer-blend or two or more kinds of substance that can be separated pure substance - correct answer-fixed composition homogeneous - correct answer-uniform in composition heterogeneous - correct answer-not uniform throughout vertical columns - correct answer-families or groups horizontal rows - correct answer-periods metal properties - correct answer-malleable, ductile, shiny, excellent conductors nonmetal properties - correct answer-brittle, poor conductors, gases at room temp. metalloid properties - correct answer-semi-conductors What is most prevalent about noble gases? - correct answer-generally nonreactive solid properties - correct answer-definite shape and volume liquid properties - correct answer-indefinite shape and definite volume gas properties - correct answer-indefinite shape and volume Organic chemistry is the study of _________-containing compounds. - correct answer- carbon What is/are the reactant/s? 2H₂+O₂→2H₂O - correct answer-2H₂ and O₂ What is/are the product/s? 2H₂+O₂→2H₂O - correct answer-2H₂O What is the scientific method? - correct answer-a logical approach to solving problems quantitative - correct answer-data that is measurable; obervations based on numbers qualitative - correct answer-data that is represented with words, not numbers SI base unit for length - correct answer-meter SI base unit for mass - correct answer-kilogram SI base unit for time - correct answer-second SI base unit for temperature - correct answer-kelvin SI base unit for substance - correct answer-mole How is mass different from weight? - correct answer-Mass is amount of matter;weight is gravitational pull of matter Volume is___________. - correct answer-amount of space occupied by an object How do you calculate density? - correct answer-D(density)=M(mass)/ V(volume)