SAT Subject Test Chemistry,10 edition
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 ...
Note that we start with the value of 72 g AgCl given in the question and multiply it by three ...
Limiting Reactants When reactants are mixed, they are seldom added in the exact stoichiometric proportions as ...
Since one mole of Fe is needed to react with one mole of S, and there are 0.5 mol Fe versus 0.75 mol S ...
Calculate the theoretical yield for Cu. We are told that CuSO4 is in excess, and so the theoretical yield will ...
Review Questions 1 . What is the sum of the coefficients of the following equation when it is balanced? C ...
4 . CH 3 CO 2 Na + HClO 4 → CH 3 CO 2 H + NaClO 4 The above reaction is classified as a (A) double displaceme ...
The following reaction should be used to answer questions 9–11. Ag(NH 3 ) 2 + → Ag+ + 2NH 3 7 . 27.0 g of ...
12 . A hydrocarbon (which by definition contains only C and H atoms) is heated in an excess of oxygen t ...
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