SAT Subject Test Chemistry,10 edition

Answer Key REVIEW QUESTIONS 1 . The H—F bond is more polar than an H—H bond. 2 . Cl 2 < HCN < NaC ...

Answers and Explanations REVIEW QUESTIONS 1 . The H—F bond is more polar than an H—H bond. “Polar” denotes uneq ...

II Choices I and III must be wrong because, although they satisfy the octet rule, they have the wrong ...

N: 5 electrons 8 electrons 3 O: 18 electrons 24 electrons 24 electrons 32 electrons (32 – 24) electrons = 8 ...

Now check the formal charges: The P has a formal charge of +1 and the O has a formal charge of –1. These can ...

C. All three are polar. D. H 2 S is angular due to the two lone pairs on S, therefore polar. ...

Chapter 6 Chemical Reactions and Stoichiometry In the last chapter, we discussed how atoms combine and are held ...

Molecular Weight and Molar Mass A molecule is a combination of two or more atoms held together by coval ...

example, one mole of an atom with atomic mass x amu has a mass of x grams. The same relationship ...

Representation of Compounds The formula for a chemical compound gives us information about the relative prop ...

The molecular formula is either the same as the empirical formula or a multiple of it. Given a molecular ...

Example: What are the empirical and molecular formulas of a compound that contains 40.9% carbon, 4.58% hy ...

would be entirely consistent with the percent compositions given above: You cannot distinguish between the two, ...

Types of Chemical Reactions There are many ways in which elements and compounds can react to form othe ...

Zn (s) + CuSO 4 (aq) → Cu (s) + ZnSO 4 (aq) Single displacement reactions are often further classified as ...

Answers: (B) A compound breaks down into two or more substances. (C) Two or more reactants form one pro ...

Net Ionic Equations Because reactions such as displacements often involve ions in solution, they can be ...

Balancing Equations Chemical equations express how much and what type of reactants must be used to obta ...

TEST STRATEGY When balancing equations, it is in general more effective to focus on the least represented ...

Applications of Stoichiometry Once an equation has been balanced, the ratio of moles of reactant to mole ...