Discover Health Occupations Readiness Test: Chemistry Basics Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. An enzyme will reach its saturation point

Question 2 2. What are the properties of a solid?

Question 3 3. Which of the following is NOT a type of chemical bond?

Question 4 4. Which state of matter generally has the highest density?

Question 5 5. What is a catalyst?

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Question 6 6. Which of the following is a strong base?

Question 7 7. Water's ability to move against gravity in a narrow space, such as a tube, is called:

Question 8 8. An element is defined by the number of:

Question 9 9.

Given the following information, which element(s) are most likely to lose electrons?

I. Iodine is a member of Group VII (halides).

II. Strontium is located in the second column of the periodic table.

III. Selenium has six valence electrons.

Question 10 10. If we know that manganese dioxide is a catalyst in the decomposition of hydrogen peroxide, then how does manganese dioxide affect this reaction?

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Question 11 11. What molecule in our bodies is a catalyst?

Question 12 12. At the melting point and boiling point what happens?

Question 13 13. What is an electron shell?

Question 14 14. Which of the following properties helps explain why a city near the Pacific Ocean experiences less dramatic changes in temperature during the day compared to a city farther inland?

Question 15 15. Elements in Group 2 are known as the _____.

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Question 16 16. The pH scale is a _______ scale.

Question 17 17. What is NOT an example of an acid base reaction?

Question 18 18. Why do covalent bonds form?

Question 19 19. What are the characteristics of a liquid?

Question 20 20. Which of the following is a strong acid?

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Question 21 21. When both the reactants and the products of a reaction exist simultaneously because both forward and reverse reactions are competing, you have a _____.

Question 22 22. The pH scale is a way of measuring _______.

Question 23 23. Which of the following would likely NOT increase a reaction rate of an enzyme in your mouth that was not yet at optimal conditions?

Question 24 24. An increase in temperature

Question 25 25. Which of the following can be found in the second period of the periodic table?

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Question 26 26. Donna noticed that as she was creating a solution, an acid was formed when a base gained a proton. Which of the following is Donna noticing?

Question 27 27. Oxidation describes the process of:

Question 28 28. The phase change when gas turns directly into a solid is called:

Question 29 29. Which of the following is the poorest conductor of electricity?

Question 30 30. What does the atomic number represent?

Discover Health Occupations Readiness Test: Chemistry Basics Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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