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Understanding Matter 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. Substances in which phase of matter have the most space between particles?

Question 2 2. What is a phase diagram?

Question 3 3. Length is a(n) ______ physical property.

Question 4 4. The phase change when gas turns directly into a solid is called:

Question 5 5. The amount of 3-dimensional space occupied by a material is known as what?

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Question 6 6.

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.)

Question 7 7.

Consider the reaction:

Mg +CuCl2 = MgCl2 + Cu

Which type of reaction is shown above?

Question 8 8. Alcohol and water are best separated from one another by:

Question 9 9. What are the characteristics of a liquid?

Question 10 10. An example of condensation is:

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Question 11 11.

A computer chip contains 1.20 x 10^23 atoms of silicon. What is its mass?

(The molecular mass of silicon is 28 g/mol.)

Question 12 12. Which of the following is most likely to lead to a phase change?

Question 13 13. Which is a slow way to separate solid sugar from a solution of sugar water?

Question 14 14. When a bond forms, energy is given off to the surroundings. This is an example of

Question 15 15. Compound X is converted to elements A and B. Compound X has undergone a _____ reaction.

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Question 16 16. Which type of reaction always requires oxygen to be a reactant?

Question 17 17. At the melting point and boiling point what happens?

Question 18 18. Density is a physical property that is calculated by dividing ______ by volume.

Question 19 19. Which of the following is a physical property of matter?

Question 20 20. The ability of iron to react to oxygen is an example of _____

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Question 21 21. Which of the following is the most heterogeneous mixture?

Question 22 22. _____ properties of matter can be determined without changing composition, while _____ properties of matter must change the composition of matter.

Question 23 23.

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 24 24. The melting point of a solid is the temperature at which it changes state from a solid to a liquid at a given pressure. The melting point of a substance is the same no matter how much of the substance is present. This makes melting point a(n) ______ physical property.

Question 25 25. What is the most common state of matter in the universe?

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Question 26 26. Ocean water is a good example of a mixture because _____

Question 27 27. What is NOT something that a phase equilibrium line shows?

Question 28 28. An endothermic reaction is:

Question 29 29. Homogeneous mixtures are also called

Question 30 30. What is the triple point?

Understanding Matter 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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