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Physical Sci – Catalysts - Unit 4

Physical Sci – Catalysts - Unit 4. Catalyst #30 (Unit #4) :. In a glass of sweet tea (sugar & water), identify which substance is the solute? Which substance is the solvent?

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Physical Sci – Catalysts - Unit 4

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  1. Physical Sci – Catalysts - Unit 4

  2. Catalyst #30 (Unit #4) : • In a glass of sweet tea (sugar & water), identify which substance is the solute?Which substance is the solvent? • What kind of solution is your sweet tea*if you can still dissolve more sugar into it?*if you can not dissolve any more sugar into it?*If you tap the glass and some sugar precipitates out of it?

  3. Catalyst #31 (Unit #4) • 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,

  4. Catalyst #32 (Unit #4) • 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

  5. Catalyst 33 (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?

  6. Catalyst #34 (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.

  7. Catalyst #35 (Unit #4) 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?

  8. Catalyst #36 (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 = _________ ____________

  9. Catalyst #37 (Unit #3) Review : • 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.

  10. Catalyst #38 (Unit #3) Review • 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)

  11. Catalyst #39 (Unit #3) Review : 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 ________

  12. Catalyst #40 (Unit #3)Review 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 ________

  13. Catalyst #40 (Unit #3) Review 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 ___ ___

  14. Catalyst#____ • After Unit 4 Test • Attach the Vocabulary Definitions sheet to page ___ • On page _____ – Write the ___ vocabulary terms for Unit 4 • On page ___, organize the ___ vocab terms into groups using the definitions given to you on page ___. • Find words that seem to be closely related to each other and put them together in a group.[for example, Acids & Bases are determined from their pH, so put all 3 words into a group then add any other words related to pH, Acid or Base to the group.]

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