Homework Answers
On decomposition of limestone forms solid(CaO) and gas (CO2).
CaCO3 = CaO(s) + CO2(g)
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Question 5 2 pts After looking at the products in the reaction above, what happens to...
Predict the products, given following reactants. Balance the resulting chemical equations. If no reaction happens the...
Predict the products, given following reactants. Balance the resulting chemical equations. If no reaction happens the then write NO RXN. 1. Gaseous butane is combusted 2. Solid magnesium is burned in air 3. Chlorine gas is bubbled through a solution of hydrogen fluoride 4. Solid silver oxide is decomposed 5. Solid zinc is placed in a solution of silver nitrate 6. Solid lead is placed in a solution of aluminum chloride 7. Liquid propanol is burned in oxygen 8. Solid...
5.What happens during the following phase transitions? (Bring up physical things like molecules have higher KE,...
5.What happens during the following phase transitions? (Bring up physical things like molecules have higher KE, the material becomes more dense, etc.) a. Liquid → Solid b. Liquid → Gas c. Gas → Plasma
Question 1 5 pts - What is the purpose of melting point? All the answers To...
Question 1 5 pts - What is the purpose of melting point? All the answers To check the purity of solids To check identity of unkown solids To publish for new solids for future characterization Question 2 5 pts How does impurity change melting point value and range? increase-narrowing decrease-narrowing decrease-broadening O increase-broadening Question 3 5 pts What is the reason of an impurity affecting melting point of a solid? Watch Mel. Point Theory video. Not known Obc it weakens...
Question 1 5 pts - What is the purpose of melting point? All the answers To...
Question 1 5 pts - What is the purpose of melting point? All the answers To check the purity of solids To check identity of unkown solids To publish for new solids for future characterization Question 2 5 pts How does impurity change melting point value and range? increase-narrowing decrease-narrowing decrease-broadening O increase-broadening Question 3 5 pts What is the reason of an impurity affecting melting point of a solid? Watch Mel. Point Theory video. Not known Obc it weakens...
Question 3 1 pts Select the three best determinants for a chemical reaction to take place....
Question 3 1 pts Select the three best determinants for a chemical reaction to take place. The reactants are oriented correctly to allow interaction of reactive atoms The reactants are attracted to each other The collisions between atoms is occurring frequently There is enough energy available The reactants have opposite charge The reactants are higher energy than the products The reactants are both in the same phase (e.g. solid, liquid, gas) 1 pts Question 4 Calculate the rate of reaction...
Question 31 2 pts For the following reaction, determine what the products of this reaction will...
Question 31 2 pts For the following reaction, determine what the products of this reaction will be. When you have predicted the products, balance the equation and use a table of solubility products to determine which of the products (if any) will precipitate. Assume all reactions take place in water. Cu(OH)2 + H3PO4> 3 Cu(OH)2(aq) + 2 H3PO4(aq)-> 6 H20(I)+ Cu3(PO4)2 (aq) none of these 0all of these 3 Cu(OH)2(aq) + 2 H3PO4(aq)>6 H2O(I)+ Cu3(PO4)2 (s) 2 Question 32 We...
Question 5 (1.5 pts] Which one of the following statements about the organic products of Reaction...
Question 5 (1.5 pts] Which one of the following statements about the organic products of Reaction #4 is correct? Reaction #4 KMnO,,H,O, NaOH, cold Both OH groups occupy axial positions Both OH groups occupy equatorial positions One OH group occupies an axial position while the other OH group occupies an equatorial position None of the above Question 6 (1.5 pts) How many organic products are formed in Reaction #5? Hints The alkenes react sequentially, rather than at the same time...
Question 31 1 pts What happens to protein digestion products in the gastrointestinal tract? The products...
Question 31 1 pts What happens to protein digestion products in the gastrointestinal tract? The products are packaged into micelles during absorption All of the amino acids are used metabolically by the enterocyte O The protein digestion products are moved into the central lacteal Some of the amino acids are used during protein synthesis in the enterocyte The amino acids are combined with carbohydrates to form glycoproteins Question 29 1 pts In the gastrointestinal tract, retropulsion... forms feces in the...
16. The the following questions refer to above phase diagram. (6 pts.) a. What process in...
16. The the following questions refer to above phase diagram. (6 pts.) a. What process in moving from A occurs to C? Temperature b. What is the intersection at D called? c. Which letter is the liquid phase? d. What process occurs to the right of point D as pressure increases? e. What process occurs if you increase pressure on the solid? 1. If one atmosphere of pressure is higher than D. what happens when the solid is heated?
Question 5 (1.5 pts] Which one of the following statements about the organic products of Reaction...
Question 5 (1.5 pts] Which one of the following statements about the organic products of Reaction #4 is correct? Reaction #4 KMnO4, H,O, NaOH, cold Both OH groups occupy axial positions Both OH groups occupy equatorial positions o One OH group occupies an axial position while the other OH group occupies an equatorial position O None of the above Question 6 (1.5 pts) How many organic products are formed in Reaction #5? Hints The alkenes react sequentially, rather than at...
Predict the products, given following reactants. Balance the resulting chemical equations. If no reaction happens the then write NO RXN. 1. Gaseous butane is combusted 2. Solid magnesium is burned in air 3. Chlorine gas is bubbled through a solution of hydrogen fluoride 4. Solid silver oxide is decomposed 5. Solid zinc is placed in a solution of silver nitrate 6. Solid lead is placed in a solution of aluminum chloride 7. Liquid propanol is burned in oxygen 8. Solid...
Question 1 5 pts - What is the purpose of melting point? All the answers To check the purity of solids To check identity of unkown solids To publish for new solids for future characterization Question 2 5 pts How does impurity change melting point value and range? increase-narrowing decrease-narrowing decrease-broadening O increase-broadening Question 3 5 pts What is the reason of an impurity affecting melting point of a solid? Watch Mel. Point Theory video. Not known Obc it weakens...
Question 1 5 pts - What is the purpose of melting point? All the answers To check the purity of solids To check identity of unkown solids To publish for new solids for future characterization Question 2 5 pts How does impurity change melting point value and range? increase-narrowing decrease-narrowing decrease-broadening O increase-broadening Question 3 5 pts What is the reason of an impurity affecting melting point of a solid? Watch Mel. Point Theory video. Not known Obc it weakens...
Question 3 1 pts Select the three best determinants for a chemical reaction to take place. The reactants are oriented correctly to allow interaction of reactive atoms The reactants are attracted to each other The collisions between atoms is occurring frequently There is enough energy available The reactants have opposite charge The reactants are higher energy than the products The reactants are both in the same phase (e.g. solid, liquid, gas) 1 pts Question 4 Calculate the rate of reaction...
Question 31 2 pts For the following reaction, determine what the products of this reaction will be. When you have predicted the products, balance the equation and use a table of solubility products to determine which of the products (if any) will precipitate. Assume all reactions take place in water. Cu(OH)2 + H3PO4> 3 Cu(OH)2(aq) + 2 H3PO4(aq)-> 6 H20(I)+ Cu3(PO4)2 (aq) none of these 0all of these 3 Cu(OH)2(aq) + 2 H3PO4(aq)>6 H2O(I)+ Cu3(PO4)2 (s) 2 Question 32 We...
Question 5 (1.5 pts] Which one of the following statements about the organic products of Reaction #4 is correct? Reaction #4 KMnO,,H,O, NaOH, cold Both OH groups occupy axial positions Both OH groups occupy equatorial positions One OH group occupies an axial position while the other OH group occupies an equatorial position None of the above Question 6 (1.5 pts) How many organic products are formed in Reaction #5? Hints The alkenes react sequentially, rather than at the same time...
Question 31 1 pts What happens to protein digestion products in the gastrointestinal tract? The products are packaged into micelles during absorption All of the amino acids are used metabolically by the enterocyte O The protein digestion products are moved into the central lacteal Some of the amino acids are used during protein synthesis in the enterocyte The amino acids are combined with carbohydrates to form glycoproteins Question 29 1 pts In the gastrointestinal tract, retropulsion... forms feces in the...
16. The the following questions refer to above phase diagram. (6 pts.) a. What process in moving from A occurs to C? Temperature b. What is the intersection at D called? c. Which letter is the liquid phase? d. What process occurs to the right of point D as pressure increases? e. What process occurs if you increase pressure on the solid? 1. If one atmosphere of pressure is higher than D. what happens when the solid is heated?
Question 5 (1.5 pts] Which one of the following statements about the organic products of Reaction #4 is correct? Reaction #4 KMnO4, H,O, NaOH, cold Both OH groups occupy axial positions Both OH groups occupy equatorial positions o One OH group occupies an axial position while the other OH group occupies an equatorial position O None of the above Question 6 (1.5 pts) How many organic products are formed in Reaction #5? Hints The alkenes react sequentially, rather than at...
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