Section 2.2 properties of water answer key

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ANSWERS 21 CONCEPT OF SOLUBILITY 1. G1 Which of the following will dissolve in water to produce a molecular solution? A. CaCl 2 B. NaOH C. CH 3OH D. Sr(OH) 2 2. G1 Which one of the following would form an ionic solution when dissolved in water? A. I 2 B. CH 3OH C. Ca(NO 3)2 D. C 12 H22 O11 3.

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2.2 Properties of Water O H H _ + + Life depends on hydrogen bonds in water. • Water is a polar molecule. -Polar molecules have slightly charged regions. - Nonpolar molecules do not have charged regions. - Hydrogen bonds form between slightly positive hydrogen atoms and slightly negative atoms.

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Workbook 2 Answer Key 6 2 Answer Key Unit 9 1 2 water 3 air 2 2 yes 3 yes 4 no 3 Students’ own answers 4 big objects house school 5 2 can 3 can’t 4 can’t 6 Students’ own answers Lesson 1 1 2 c 3 d 4 a 2 Students’ own answers 3 2 slowly 3 slowly 4 quickly 4 2 It moves quickly. 3 It moves slowly. 4 He/She moves quickly. 2–2 DENSITY AND SPECIFIC GRAVITY Density is mass per unit volume; specific volume is volume per unit mass. Specific gravity: The ratio of the density of a substance to the density of some standard substance at a specified temperature (usually water at 4°C). Density Specific weight: The weight of a unit volume of a substance. Specific volume

Answers may vary. An element is a pure substance that cannot be broken down by physical or chemical means. A compound is a pure substance composed of two or more elements. A compound can be broken down by chemical means. An element is shown with a chemical symbol. A compound is shown with a chemical formula. Water is a compound that you drink ...