15 The energy diagram for the reaction between sodium hydroxide and hydrochloric acid is shown. Which quantity of heat is liberated when 100cm³ of 1mol/ dm³ hydrochloric acid reacts with 100cm³ of 1 mol/ dm³ sodium hydroxide?

The volume of helium in a blimp is 6.28 x 10^9 millimeters. the density of helium in the blimp is .1786 kilogram/meter^3. find the mass of the helium in the blimp.

Substance a is a nonpolar liquid and has only dispersion forces among its constituent particles. substance b is also a nonpolar liquid and has about the same magnitude of dispersion forces among its constituent particles. when substance a and b are combined, they spontaneously mix.

Which of the following occurs along coasts during the day?