Read the statement and study the reaction.

NaCN dissociates into Na+ and CN– ions in water (H2O).

CN– hydrolyzes water according to following reaction:

CN– + H2O ⇌ HCN + OH–

A sample solution has 0.051 M of CN– ions, and the pH of the solution is 10.96. What is the equilibrium constant for this reaction?

9.7 × 10–6
6.22 × 10–6
1.63 × 10–5
3.10 × 10–5

What postulate of the kinetic molecular theory best explains why gases have high fluidity? because collisions between gas particles are elastic, there is no loss of energy as particles flow past each other. because gases consist of large numbers of tiny particles, they spread out and do not come in contact with each other. because the attractive forces between gas particles are negligible, gas particles can glide easily past one another. because the average kinetic energy of gas particles increases as temperature increases, gas particles behave more like a liquid. question 6 compare the compressibility of gases and liquids. support your answer by describing the arrangement of particles in gases and liquids.

Water is important for the of cells. a: size, shape, and temperature b: temperature, color, and odor c: color, odor, and size d: shape, temperature, and color

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro