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GED Science - Compounds and Chemical Bonds: Help and 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!

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Question 1 1. CaF2 is a(n)

Question 2 2. Which of the following statements is NOT true about molecules?

Question 3 3. Two different molecules can participate in which of the following bonds?

Question 4 4. Which of the following is a molecule?

Question 5 5. If a solute dissolves well in a solvent, the solute is

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Question 6 6.

Which of the following statements are true?

I. Noble gases complete their valence level by sharing electrons.

II. Covalent bonds are weak and easily broken.

III. Covalent bonds allow us to make predictions on how the molecule will look.

Question 7 7.

Which of the following statements is true?

I. In an ionic bond, electrons move toward the atom that is more electronegative.

II. A cation is a negatively charged atom.

III. A positively charged atom is called an anion.

IV. Under biological conditions, ionic bonds are stronger than covalent bonds.

Question 8 8. Which of the following is an example of an element?

Question 9 9.

Which of the following statements are true?

I. Water molecules can form hydrogen bonds with sodium chloride.

II. Water molecules can form an ionic bond with other water molecules.

III. The hydrogen of a water molecule can form a hydrogen bond with the hydrogen of another water molecule.

Question 10 10. Which of the following is a homogeneous mixture?

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Question 11 11. Which best defines a solution?

Question 12 12. If a silicon atom has four valence electrons, what is the maximum number of bonds it can form?

Question 13 13. Which of the following is an element?

Question 14 14.

If a carbon atom has four valence electrons, which of the following statements are true?

I. Carbon can form a triple covalent bond with another carbon atom.

II. A carbon atom cannot form two double bonds simultaneously.

III. A carbon atom can form four single covalent bonds simultaneously.

Question 15 15. What makes a water molecule, H20, different from the mixture in a glass of tap water?

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Question 16 16. Two atoms with the same electronegativity would form what kind of bond?

Question 17 17. In a _____, the _____ dissolves the _____.

Question 18 18. Which of the following is NOT a way to separate a mixture?

Question 19 19.

What differentiates a nonpolar covalent bond from a polar covalent bond?

I. Unequal sharing of electrons

II. Ions

III. Atoms of partial charge

Question 20 20. Which of the following is an alloy?

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Question 21 21. Which of the following atoms is most likely to participate in an ionic bond with chlorine, an atom with 7 valence electrons?

Question 22 22. Molecules are made of _____ , while compounds are made of _____ .

Question 23 23. Which of the following statements is NOT true about mixtures?

Question 24 24. Which is a homogeneous mixture?

GED Science - Compounds and Chemical Bonds: Help and Review Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next question. You can skip questions if you would like and come back to them later with the "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. You will lose your work if you close or refresh this page. Good luck!

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