GACE Chemistry Test I (028): Practice & Study Guide Final Exam

Free Practice Test Instructions:

Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!

Question 1 1. What is the three-dimensional shape of a Boron trichloride molecule ?

Question 2 2. Which of the following compounds is an ether ?

Question 3 3. Ed has been appointed as the new Sustainability Manager for his factory and is charged with implementing the use of Green Chemistry in the factory's operations. Which of the following activities would be the best project for Ed to initiate in this new role ?

Question 4 4. Which of the following human-based activities has most contributed to the depletion of the earth's stratospheric ozone layer ?

Question 5 5. Uranium-235 (U-235) has a half-life of 7.04 × 10^8 years. If 20.8 grams of U-235 is sealed in an underground vault, how long will it take for its mass to be reduced by 75% ?

Question 6 6. Pure water is being stored in a 500 liter vat at room temperature (15 degrees Celsius) at a chemical manufacturing plant. The water must be heated to a temperature of 80 degrees Celsius before it can be added to a product formulation. How much energy must be transferred to the water for it to reach 80 degrees Celsius ?

Question 7 7. If the change in Enthalpy for a chemical reaction is equal to +2195 KJ per mole, which combination of values for the reaction's temperature T (in degrees Kelvin) and change in entropy Δ S (in KJ per mole - Kelvin degree) listed below would cause the reaction to be spontaneous

Question 8 8. What is the heat of reaction for the complete combustion of Propane ( C sub 3 H sub 8 ) , given the Standard Heat of Formation Data listed below ?

Question 9 9. Mr. Thomas is a physical education teacher at a junior high school. He has developed a hypothesis that the number of pull-up exercises a student can do is a function of their gender, weight, and bicep size. Throughout the next week of classes Mr. Thomas is planning to gather data to prove this hypothesis. What would be the best sampling method for Mr. Thomas to utilize ?

Question 10 10. Which of the following compounds possesses a polar covalent bond?

Question 11 11. A laboratory performs an elemental composition analysis on an unidentified solid crystal and concludes that the crystal is comprised of 17.11% Magnesium, 37.94% Aluminum, and 44.97% Oxygen. What is the crystal's base chemical formula?

Question 12 12. The most stable isotope of the element Plutonium is Pu-244, which has a half-life of approximately 80.8 million years. How many neutrons does one atom of Pu-244 possess ?

Question 13 13. The standard atomic weight of the element Palladium is 106.42. Which is the correct answer for representing this value in scientific notation ?

Question 14 14. A chemistry student is using a buffer solution (pH = 7.0) to calibrate a pH meter. When the pH meter's probe is inserted into the solution, its readout indicates a pH of 7.3. What is the percent error of the meter's measurement ?

Question 15 15. Which of the following is an extensive property ?

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GACE Chemistry Test I (028): Practice & Study Guide Final Free Practice Test Instructions

Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!

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