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Clicker 4 - PowerPoint PPT Presentation

Clicker #1

Clicker #1

Clicker #1. Which is lower in potential energy and more stable? unburned match or burned match A) unburned match B) burned match. Example #1. Is the freezing of water an endothermic or exothermic process? (The system is underlined.) Exothermic. Clicker #2.

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84 views • 7 slides
Clicker #1

Clicker #1

Clicker #1. Which of the following supports why Lewis structures are not a completely accurate way to draw molecules? A) The Lewis structure for O 2 shows all electrons as paired but when liquid O 2 is poured onto a magnet, it behaves as a molecule with an unpaired electron.

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71 views • 5 slides
Clicker #1

Clicker #1

Clicker #1. Which of the following best describes the substance XeF 4 ? I. Element II. Molecule III. Compound IV. Heterogeneous mixture V. Homogeneous mixture A) III only B) I, II C) II, III, IV D) II, III, V E) II, III. Clicker #2.

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186 views • 4 slides
Clicker #1

Clicker #1

Clicker #1. Which of the following best describes the substance XeF 4 ? I. Element II. Molecule III. Compound IV. Heterogeneous mixture V. Homogeneous mixture A) III only B) I, II C) II, III, IV D) II, III, V E) II, III. Clicker #2.

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226 views • 4 slides
Clicker #1

Clicker #1

Clicker #1. You add 300.0 mL of water to 300.0 mL of a 2.00 M sugar solution. How many of the following will change? I. total volume of the solution II. moles of solute in the solution III. mass of solute in the solution IV. concentration of the solution

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240 views • 4 slides
Clicker #1

Clicker #1

Clicker #1. Which of the following best describes the substance XeF 4 ? I. Element II. Molecule III. Compound IV. Heterogeneous mixture V. Homogeneous mixture A) III only B) I, II C) II, III, IV D) II, III, V E) II, III. Clicker #2.

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230 views • 4 slides

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