Understanding 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!

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Question 1 1. What is the most common state of matter in the universe?

Question 2 2. Which of the following has a positive charge and a mass of one amu?

Question 3 3. The number of protons in an atom corresponds to what?

Question 4 4. Which of these is true?

Question 5 5. Which of the following will react violently with water to form a base?

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Question 6 6. What does the atomic number represent?

Question 7 7. What is the octet rule?

Question 8 8. Both gases and liquids:

Question 9 9. What is a covalent bond?

Question 10 10. Which of the following is an example of an element?

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Question 11 11. What are the characteristics of a gas?

Question 12 12. Which of the following changes to sugar is an example of a physical change?

Question 13 13. What makes a water molecule, H20, different from the mixture in a glass of tap water?

Question 14 14. Molecules are considered 'organic' only if they contain

Question 15 15. Which is a homogeneous mixture?

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Question 16 16. Which of these is NOT an example of a molecule?

Question 17 17. Why do covalent bonds form?

Question 18 18. Which of the following is an example of a chemical change?

Question 19 19.

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 20 20. Which state of matter generally has the highest density?

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Question 21 21. An element is defined by the number of:

Question 22 22. Which of the following statements is NOT true about mixtures?

Question 23 23. If Argon is a noble gas and its atomic number is 18, how many electrons can be found in the valence level?

Question 24 24. Which of the following is NOT a way to separate a mixture?

Question 25 25. Gas can be turned into a plasma on Earth with the addition of:

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Question 26 26. What is an electron shell?

Question 27 27. What are valence electrons?

Question 28 28. DNA and proteins are examples of

Question 29 29. If only one type of atom makes up a substance, what can you call this substance?

Question 30 30. Where are the electrons in an atom?

Understanding 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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