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Health Careers Practice Entrance Test: Chemistry
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Health Careers Practice Entrance Test: Chemistry
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25 Questions

1. Which of the following bonds is the most polar?
2. A dating technique involves electron capture by potassium-40 isotope according to the following equation: . If the half-life is 1.2
3. Which of the following is classified as an aldehyde?
4. Which of the following is an alkaline earth metal?
5. How much heat is required to raise the temperature of 100 grams of water from 25
6. When a liquid is at its boiling point, the vapor pressure of the liquid
7. When amino acids polymerize to make a protein, which of the following is produced as a byproduct?
8. Which of the following is NOT a characteristic of nonmetals?
9. Which of the following is the composition of the bonds in the molecule N2?
10. What is the electron configuration of a Cl- ion?
11. If temperature and pressure are held constant for a sample of gas, and the number of moles is doubled, in what manner will the volume change?
12. Which of following is the balanced equation for the reaction between NH3 and O2?
13. Butane, C4H10, combusts to form CO2 and H2O. Which of the following is the balanced chemical equation that describes this reaction?
14. Which of the following is the most likely charge on an ion of Sr? (Sr is a group IIA molecule.)
15. In which of the following solutions is Ag2CO3 most soluble?
16. If a gas is heated at a constant volume, the pressure
17. How many moles of 0.2 M HCl are needed to titrate 100 ml of 0.4 M NaOH? HCl(aq) + NaOH(aq)
18. The normal boiling point of water is 100
19. Which of the following will have the highest boiling point?
20. Which of the following is the name of the oxyacid HClO4?
21. Osmotic pressure is defined as
22. Which of the following are the general products of a combustion reaction?
23. Which of the following has the largest first ionization energy?
24. Two liters of air at a pressure of two atm are condensed to 0.5 liters. If the temperature is constant, what is the new pressure?
25. The composition of dry air consists of approximately 78% nitrogen, N2, and 21% oxygen, O2. If the air pressure of a 5-liter sample of dry air is 800 torr, what is the approximate partial pressure of oxygen?