'Nisd net communicationsarts pages' presentation slideshows

Phase Changes

The thermal or internal energy of a sample is the sum of all the kinetic and potential energies of all the atoms and molecules in a sample. Vaporization. Melting. Freezing. Condensation. Phase Changes. Solid. Gas. Liquid. Heating Curves. Heating Curves Animation.

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The Greeks History of the Atom

~. ~. The Greeks History of the Atom. Not the history of atom, but the idea of the atom In 400 B.C the Greeks tried to understand matter (chemicals) and broke them down into earth, wind, fire, and air. (continuous matter) Greek philosophers (Aristotle, Democritus, others).

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Properties of Matter

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Measurement, sigfigs , and Scientific Notation

Measurement, sigfigs , and Scientific Notation. Many slides copied from: http://www.unit5.org/chemistry/Introduction.htm. 100 mL Graduated Cylinder. Zumdahl, Zumdahl, DeCoste, World of Chemistry 2002, page 119. Instruments for Measuring Volume. Graduated cylinder. Syringe. Volumetric

582 views • 43 slides

Intermolecular Forces

Intermolecular Forces. (a) Particles in solid (b) Particles in liquid (c) Particles in gas. Intermolecular Forces. Objectives. Distinguish various properties of liquids and solids. Relate different intermolecular forces to explain observations in lab and nature.

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Classification of Matter

Classification of Matter. Use to make foldable The terms in red are your voc. terms. Pure Substances. Pure Substance that cannot be broken down into any other substances by chemical or physical means. Gold - element. Manganese Dioxide - compound. Pure Substance. Element

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S t o i c h i o m e t r y

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Unit 12 Stoichiometry

Unit 12 Stoichiometry. Stoichiometry. describing the relative quantities of reactants and products in a chemical reaction. http://visual.ly/chocolate-chip-cookies. How Big is a Mole?. One mole of marbles would cover the entire Earth (oceans included) for a depth of two miles.

627 views • 31 slides

Visualizing a Chemical Reaction

Visualizing a Chemical Reaction. 2. 2. Na + Cl 2 NaCl . 10. 5. 10. 10. ?. 10. 5. ___ mole Na. ___ mole Cl 2. ___ mole NaCl. Formation of Ammonia. Ratio of eggs to cookies. Proportional Relationships.

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Significant Figures

Significant Figures. Factor Name Symbol Factor Name Symbol. 10 -1 decimeter dm 10 1 decameter dam 10 -2 centimeter cm 10 2 hectometer hm 10 -3 millimeter mm 10 3 kilometer km

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Nuclear

Nuclear. Band of Stability. 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0. n = p. Number of neutrons. Stable nuclides. Naturally occurring radioactive nuclides. Other known nuclides.

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Collisions of Gas Particles

Collisions of Gas Particles. Collisions of Gas Particles. Kinetic Theory. Kinetic Molecular Theory. Postulates of the Kinetic Molecular Theory of Gases. Gases consist of tiny particles (atoms or molecules) These particles are so small, compared with the distances between

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Electrons in Atoms

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How to Measure Pressure

Aneroid Barometer. How to Measure Pressure. Barometer measures atmospheric pressure. vacuum. P Hg. P atm. Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem. vacuum. mercury (Hg). air pressure. barometer : device to measure air pressure. Empty space (a vacuum).

1.18k views • 9 slides

Accuracy vs. Precision

Accuracy vs. Precision. Accuracy - how close a measurement is to the accepted value Precision - how close a series of measurements are to each other. ACCURATE = Correct PRECISE = Consistent. Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem. Significant Figures.

574 views • 8 slides

The Gas Laws

The Gas Laws. Kinetic Molecular Theory. Postulates of the Kinetic Molecular Theory of Gases. Gases consist of tiny particles (atoms or molecules) These particles are so small, compared with the distances between them, that the volume (size) of the individual particles can be assumed

216 views • 7 slides