Barrons SAT Subject Test Chemistry, 13th Edition

(B) Elements in the group with (B) react in a 1:1 ratio with elements in the group with (D), since one has an electron to lose ...

(A) (A) loses 2 electrons to form an ion whose remaining electrons, being close to the nucleus, are pulled in closer than what ...

(B) Since (B) has only one electron in the outer 4s orbital, it can more easily be removed than can an electron from the 3s orb ...

(E) All Group VIII elements have a complete p orbital as the outer energy level. This explains why these elements are “inert.” ...

(D) The heat of formation is the energy change caused by the difference in the initial energy and final energy of the system wh ...

(B) The ionization energy is defined as the energy needed to remove an electron from the ground state of the isolated gaseous a ...

(E) The activation energy is defined as the minimum energy required for molecules to react. This is true for both exothermic an ...

(A) H 2 O is ice in Part A. ...

(D) H 2 O changes state at Parts B and D. The heat of vaporization at D (540 cal/g or 2.26 × 10^3 J/g) is greater than the hea ...

(C) Water is heating at 1°C/cal/g or 4.18 J/g/1°C in Part C. This is liquid water’s specific heat. ...

(E) This is the energy needed to start the forward reaction. ...

(B) The part indicated by B represents the activation energy for the reverse reaction. ...

(C) The net energy change is the endothermic quantity indicated by C. ...

(B) Gold is known as a common noble metal because of its resistance to acids. Aqua regia, a mixture of HNO 3 and HCl, will reac ...

(D) Argon is the only element among the choices that is monoatomic in the ground state. It exists as individual atoms and is a ...

(A) Iron has 5 electrons in the d orbitals, which are partially filled. ...

(C) Only sulfur trioxide has a resonance structure (as shown here): ...

(D) Sulfuric acid reacts with a base to form a sulfate salt. ...

(D) The condition described is the equilibrium that exists at saturation. ...

(C) With the increased temperature more solute may go into solution; therefore, the solution is now unsaturated. ...