Lec-02-Chap-01-2P - Lecture 02 About Matter Classifying...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Lecture 02 About Matter: Classifying Matter: Substances and Mixtures 1.6 Elements and Compounds 1.7 Nanoscale Theories and Models 1.8 The Atomic Theory 1.9 The Chemical Elements 1.10 Chemical Symbols 1.11 Lecture 02, Knowledge and Skills • Know the difference between substances and mixtures • Know the difference between homogeneous and heterogeneous mixtures • Know the difference between elements and compounds • In many compounds, the elements occur in simple, fixed ratios • Work with different length scales • Know the symbols for the decimal system • Work with the scientific notation for small and large numbers • Use the kinetic theory to describe solids, liquids, and gases on the nanoscale • Know the basic statements of the atomic theory • Classify elements by type • Know what allotropes are • Know some allotropes, e.g., of carbon, oxygen, phosphorus, sulfur • Work with chemical symbols Mixtures Mixtures can be separated by physical techniques into various components Mechanical separation Distillation Fractional crystallization Evaporation Chromatography And other techniques Homogeneous and heterogeneous mixtures Pure substances cannot be separated by physical means Elements and Compounds Cannot be separated by physical means Compounds can be separated by chemical means
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern