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The Atom & 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. Which of the following is a physical change?

Question 2 2.

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 3 3. An element is defined by the number of:

Question 4 4. What are the properties of a solid?

Question 5 5. The nucleus of an atom:

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Question 6 6. Which type of reaction always requires oxygen to be a reactant?

Question 7 7. When does nuclear fusion occur?

Question 8 8. Which quantum number indicates the position of the orbital?

Question 9 9. Why should you avoid looking directly at magnesium burning?

Question 10 10. Who first coined the term atom, meaning indivisible?

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Question 11 11. ALL atoms of the same element have:

Question 12 12. The Bohr model of the atom:

Question 13 13. An example of condensation is:

Question 14 14. Which state of matter generally has the highest density?

Question 15 15. X and Y are elements that are isotopes to each other. Which of the following is true about X and Y?

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Question 16 16. What are the characteristics of a gas?

Question 17 17. When writing electron configurations, electrons are represented in their lowest possible energy state, called their _____.

Question 18 18. Ocean water is a good example of a mixture because _____

Question 19 19. At the melting point and boiling point what happens?

Question 20 20. The average atomic mass or atomic weight found on the periodic table is _____.

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Question 21 21. Which of the following changes to sugar is an example of a physical change?

Question 22 22. The charges on beta particles (Β - ), alpha particles (α) and gamma (γ) rays are _____ respectively.

Question 23 23.

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 24 24. A tenth of a mole of pennies contains how many pennies?

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

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Question 26 26. Which of the following has a positive charge and a mass of one amu?

Question 27 27.

Consider the reaction:

Mg +CuCl2 = MgCl2 + Cu

Which type of reaction is shown above?

Question 28 28. Enthalpy change is

Question 29 29. Which of the following is an example of a chemical change?

Question 30 30. Which of the following was the instrument used for the discovery of the electron?

The Atom & 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!

ILTS Science - Physics (116): Test Practice and Study Guide  /  Science Courses
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