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Physical Sci – Catalysts - Unit 5

Physical Sci – Catalysts - Unit 5. Catalyst #41 (Unit #5) :. What does it mean for an object to be in “motion”? How do we measure an object’s speed? Look on your reference tables – find the equation for velocity. What does d & t stand for?.

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Physical Sci – Catalysts - Unit 5

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  1. Physical Sci – Catalysts - Unit 5

  2. Catalyst #41 (Unit #5) : • What does it mean for an object to be in “motion”? • How do we measure an object’s speed? • Look on your reference tables – find the equation for velocity. What does d & t stand for?

  3. Catalyst #42 (Unit #5) • If you go 5 meters north and then 3 meters south, what is your distance? Displacement? • If you were a passenger in a car, what would be the best thing to look at to get an idea of how fast you were moving? • another passenger in the car • a car moving next to you • or a stopped car on the side of the road • What is the formula for solving for speed? • What are the units for speed? • How long does it take a toy car to go 6 meters at a speed of 1.2 m/s?

  4. Catalyst #43 (Unit #5) • Acceleration occurs when an object (3 answers) • What are the units for acceleration? • What is the formula for acceleration? • If a car went from 20 m/s to 10m/s in 5 seconds, what was the acceleration?

  5. Catalyst #44 (Unit #5) : • A box is sliding to the right (v) along a horizontal surface. • What type of friction is acting on the box? • In which direction is the Force of friction acting on the box? • If an unbalanced Force of 20 Newtons causes the box to accelerate at 2.0 m/s2 , what is the mass of the object? • If one student pushes on a desk with 20 N of force to the right and another student pushes on the desk with 15N of force to the left, what is the net force acting on the desk? Which way will it move?

  6. Catalyst #37 (Unit #5) Tues Nov 13, 2012: • What does it mean for an object to be in “motion”? • How do we measure an object’s speed? • Look on your reference tables – find the equation for velocity. What does “vf” & “vi” stand for?

  7. Catalyst #31 (Unit #4) Wed Oct 24, 2012: • The _________ is dissolved in the _________. • In sweet tea, sUgar is the ________ and water is the _________ • If you tea is saturated, but you want to make your tea sweeter (want to dissolve more sugar in it), you could ________________________________ • You’re REALLY thirsty, so DESCRIBE two ways that you could make the sugar dissolve faster,

  8. Catalyst #32 (Unit #4) Thu Oct 25, 2012: • Which solute has the HIGHEST solubility at 20oC? • Which substances obey the general “temperature” rule? • Which substance shows the greatest change in solubility from 0oC to 100oC? • For 110g at 60oC, which substances would be un-,super-, & saturated

  9. Catalyst 44 (unit 4) • How does surface area affect the rate of dissolving? • Oil is made of nonpolar molecules What will dissolve in oil, polar or nonpolar molecules?

  10. Catalyst #45 (Unit #4) : • The _________ is dissolved in the _________. • What is the alpha particle made of?What is the chemical symbol for it? • Put the 3 types of radiation in order from least penetrating/energetic to the most. • Define the half-life of a radioactive particle.

  11. Catalyst #35 (Unit #4) Tue Oct 30, 2012: Find X and name all of the particles/elements in the reaction +  + X • What is the beta particle made of?What is the chemical symbol for it? • For a reaction showing Beta Decay,side of the equation would we find thebeta particle?

  12. Test Day _ Thur Nov 1st, 2012: • Get out Catalyst notebook (Spiral)… make sure that you have catalysts #30-35 • Turn in today • Get out your class/interactive notebook: • Use ONE side of an index card to make a ‘cheat sheet’ for the test • Notebooks will be turned in WITH STAMP SHEET inside for Unit 4 (so make sure your Table of Contents is up to date)

  13. Catalyst #45 (ReTest review from Unit #3 • Element Gain/Lose e-? how many? Ion • Nitrogen • Chlorine • Lithium • Aluminum • Name the following Ionic Compounds: • MgCl2 = _________ ____________ • Al2O3 = _________ ____________ • Name the following Covalent Compounds: • NO2 = _________ ____________ • P2O5 = _________ ____________

  14. Catalyst #46 (Unit #3) • DESCRIBE and SHOW EACH STEP (explain) how you use the criss cross method to write the formulas for the • Magnesium Chloride [Ionic] • Write the Symbol for each element/polyatomic ion (Mg Cl) • ______________________ • ______________________ (d)…, etc. • DESCRIBE and SHOW EACH STEP (explain) how you write the formulas for the Covalent Compound • DiHydrogenPentoxide • Write the Symbol for the 1st (H) convert the “ide” to the 2nd (O) (b)__, (c)___…, etc.

  15. Catalyst #47 (Unit #3) • Al + CuCl2 Cu + AlCl3 • In the chemical equation/reaction above, • What are the reactants? • What are the products? • What does the arrow mean? • How many of each element are on each side? • Balance the equation (show your work)

  16. Catalyst #48 (Unit #3) Ca(ClO3)2 CaCl2 + O2 In the chemical equation/reaction above, What are the reactants? What are the products? How many of each element are on each side? Balance the equation (show your work) For each chemical equation, name it’s TYPE: 2Al + 3CuCl2 3Cu + 2AlCl3 ___________ Ca(ClO3)2 CaCl2 + 3O2 ___________ Na2SO4 + Mg(OH)2NaOH + MgSO4 ________ Li2O + MgBr2 2LiBr + MgO ________ 2H2 + O2 2H2O ________

  17. Catalyst #49 (Unit #3) H2O  H2 + O2 In the chemical equation/reaction above, What type of chemical reaction is this? What are the reactants? What are the products? Does the equation show Conservation of Mass? Balance the equation (show your work) For each chemical equation, name it’s TYPE: Na2SO4 + Mg(OH)2NaOH + MgSO4 ________ Mg + 2HCl  MgCl2 + H2 ________ CaO + H2O  Ca(OH)2 ________

  18. Catalyst #50 (Unit #3) H2O  H2 + O2 In the chemical equation/reaction above, What type of chemical reaction is this? What are the reactants? What are the products? Balance the equation (show your work) For each chemical compound, identify the type of bonding, and name the compound : Se3Br4 ________ ________________ MgCl2 ________ ________________ Mg(OH)2 ________ ________________ How many valence electrons? What charge ? O ___ _____ Li ___ ____ Al ___ ___

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