Which statement correctly explains one of Newton's laws of motion? A. Newton's third law states that objects change their motion when a nonzero net force is applied.
B. Newton's third law states that whenever a force acts on an object, that object applies an equal and opposite force back.
C. Newton's second law states that objects change their motion when a nonzero net force is applied.
D. Newton's second law states that whenever a force acts on an object, that object applies an equal and opposite force back.

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.