1. Name three observations that indicate a chemical reaction occurred. A. B. c. 2. D. SDS stands for E. OSHA stands for

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1 Name Three Observations That Indicate A Chemical Reaction Occurred A B C 2 D Sds Stands For E Osha Stands For 1 (30.73 KiB) Viewed 73 times

1 Name Three Observations That Indicate A Chemical Reaction Occurred A B C 2 D Sds Stands For E Osha Stands For 2 (46.33 KiB) Viewed 73 times

1. Name three observations that indicate a chemical reaction occurred. A. B. c. 2. D. SDS stands for E. OSHA stands for 3. Identify the type(s) of reaction for each of the following (some may require more than one answer) F. NH,OH (aq) + CuSO, (aq) à Cu(OH), (s) + (NH.),SO. (aq) G. CuSO, 54,0 (s) + A à CuSO, (s) +5 H20 (9) H. Mg(OH), (s) + 2 HCl (aq) à MgCl, (aq) + 2 H20 (1) 4. Name and find the molar mass of the followings. 1. CuSO, 51,0 J. NaHCO, K. Pb(NO), 5. Write the names of equipment found at this station L. M N 0. 6. P. Define density. Q. Determine the volume of this box. R. Determine the mass of this box. S. Calculate the density. 7. ***Make sure students clean the test tubes before they move on*** Place a piece of wine in a test tube Add about 20 drone of 6

S. Calculate the density 7. ***Make sure students clean the test tubes before they move on *** Place a piece of zinc in a test tube. Add about 20 drops of 6 МНСІ. T. Write the observation U. What is the complete balanced equation? V. What type of reaction is this? 8. ***Make sure students clean the test tubes before they move on*** To a dropperful of 0.1 M Pb(NO), in a test tu tube, add a dropperful of 0.1 M KI. W. Write the observation X. Write the complete balanced equation Y. Write the net ionic equation 9. Z. If a student found the density of 10 glass beads to be 2.50 g/ml, what would be the density of 1 glass bead? AA. Obtain a metal, record the metal number. Determine the density of the metal using volume displacement method. 10. ***Make sure students clean the Erlenmeyer flask and magnetic stir bar before they move on*** Using a volumetric pipette, transfer 10.0 mL of HCI solution into a 125 mL Erlenmeyer flask. Add a couple of drops of phenolphthalein to the HCl solution. Add the magnetic stir bar to the flask and place the flask on the magnetic stirrer. Turn on the stirrer. Titrate HCl solution using the standardized NaOH solution until the endpoint is reached. (Refill NaOH solution if needed). Upon completion, discard the products down the drain with lots of water. Rinse the Erlenmeyer flask and magnetic stir bar with Dl water. AB. What is the volume of standardized NaOH solution used to complete the titration? AC. Calculate the molarity of HCl solution.