(NEED HELP ASAP) Create a heating curve below knowing that the freezing point of the substance is -5 degrees Celsius and the boiling point is 85 degrees Celsius.

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter

Word equation for k(s) +h2o(l) yield koh (aq) + h2

A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159