Barrons SAT Subject Test Chemistry, 13th Edition

(C) .5 molar (D) .5 molal (E) 25 molar The concentration of a solution of Ca(OH) 2 when 74 grams are completely dissolved in a ...

Chemical Reactions and Thermochemistry 8 These skills are usually tested on the SAT Subject Test in Chemistry. You should be abl ...

The second type of reaction, decomposition, can also be referred to as analysis. This means the breakdown of a compound to relea ...

A good source of information to predict a chemical combination is the heat of formation table. A heat of formation table gives t ...

negative heat of formation indicates decomposition would not be difficult, such as the decomposition of mercuric oxide with ΔHf ...

solution. If a metal such as copper were chosen, no reaction would occur. Cu(s) + HCl(aq) → no reaction The determination of the ...

4. Double Replacement For double replacement reactions to go to completion, that is, proceed until the supply of one of the reac ...

Know these three conditions for going to completion. To predict the formation of an insoluble precipitate, you should have some ...

The silver ions combine with the chloride ions to form an insoluble precipitate, silver chloride. If the reaction had been like ...

TIP Salt interacts with water. In this hydrolysis reaction the same number of hydrogen ions and of hydroxide ions is released so ...

Entropy In many of the preceding predictions of reactions, we used the concept that reactions will occur when they result in the ...

TIP This paragraph gives the definition of the molar heat of formation. Notice that the ΔH for an endothermic reaction is positi ...

Since the second equation represents the formation of 2 moles of H 2 O(g), the quantity is twice −241.8, or −483.6 kJ. It is ass ...

Adding yields Simplification gives the net equation: TIP Know how to use Hess’s Law. The principle underlying the preceding calc ...

Addition yields This relationship can also be shown schematically as follows: TIP Know how to read this type of chart. Some comm ...

Step 2 Substitute these values in the equation. Another Example Calculate ΔHreaction for this oxidation of ammonia: 4NH 3 (g) + ...

heat of combustion heat of formation hydrolysis reaction molar heat of formation single replacement reaction standard enthalpy o ...

metal atom must be (A) a good oxidizing agent (B) higher in the activity series than the metal in solution (C) lower in the elec ...

(D) Einstein equation, E = mc^2 A ΔHreaction of –100 kJ/mole indicates the reaction is (A) endothermic (B) unstable (C) in nee ...

release O 2 is called a decomposition numbers of atoms. Record your answers here: ...