Mercedes and Sean, ages 68 and 70, work hard to maintain their vitality and are able to limit their age-related declines in physical, cognitive, and social functioning. Mercedes and Sean fit contemporary experts’ view of __________.

Calculate the pH of a solution that contains 2.4 × 10-3 M H3O⁺ at 25°C.

Gains in perspective taking permit the transition to __________.

Express the equilibrium constant for the following reaction. 4 NH3(g) ⇔ 2 N2(g) + 6 H2(g)

In trying to remember a future activity, younger adults rely more on __________, older adults on __________.

School-age children with a strong sense of attachment security and whose parents use a(n) __________ child-rearing style feel especially good about themselves.

__________ is the most consistent predictor of marital stability.

Typically, North American parents __________.

Adolescents are less __________ their friends than they were in childhood.

Possible selves __________.