Copyright

Classification of Matter: Help & Review 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. Which element has a mass number of 12 and contains 6 neutrons?

Question 2 2. An element is defined by the number of:

Question 3 3. The ability of iron to react to oxygen is an example of _____

Question 4 4. Hydrogen bonds exist between X and Y. Which combination could be X and Y?

Question 5 5. Which of the following is a true statement?

Page 2

Question 6 6. Intermolecular forces do NOT have effect on _____.

Question 7 7. Which of the following is an example of an ionic compound?

Question 8 8. Which of the following has a positive charge and a mass of one amu?

Question 9 9.

A piece of aluminum foil has a mass of 27 grams. About how many atoms does this contain?

(Aluminum has a molecular mass of 27 g/mol.)

Question 10 10. How many elements are there?

Page 3

Question 11 11. Which are the outermost electrons of an atom?

Question 12 12.

Which of the following are physical changes?

1. melting ice

2. boiling water

3. magnetizing a pin

4. cooking an egg

Question 13 13. Which of the following will most likely have the highest lattice energy?

Question 14 14. Which is the best definition of a covalent compound?

Question 15 15. Which of the following changes to sugar is an example of a physical change?

Page 4

Question 16 16. The nucleus of an atom:

Question 17 17. Which of the following is an example of a compound?

Question 18 18. Which of the following is a definition of a molecule?

Question 19 19. Both gases and liquids:

Question 20 20. ALL atoms of the same element have:

Page 5

Question 21 21.

Which element is found in the group described by the statement below?

This group contains poisonous, very reactive elements often used in bacteria killing or household cleaners.

Question 22 22.

A piece of pencil graphite (made of carbon atoms) has a mass of 0.12 grams. How many moles of carbon atoms are in the lead?

(The molecular mass of carbon is 12 g/mol.)

Question 23 23. Which of the following is true of intermolecular forces?

Question 24 24. Pure substances are further divided into elements and compounds. Which one best describes the rust found on a vehicle over time?

Question 25 25.

A piece of copper wire contains 5 moles of copper atoms. What is its mass?

(The molecular mass of copper is 63.5 g/mol.)

Page 6

Question 26 26. When naming a binary compound, what determines the prefix for an element in the compound?

Question 27 27. What is a polar molecule?

Question 28 28. Which of the following will react violently with water to form a base?

Question 29 29. Which of the following is NOT an example of a compound?

Question 30 30. Elements in Group 2 are known as the _____.

Classification of Matter: Help & Review 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!

Analytical Chemistry: Help & Review  /  Science Courses
Support