If in the following diagram the substance is in solid form during stage 1, at what stage do the particles have no
intermolecular bonding?
temperature
heat input
2008 o
ewe, he
intermolecular bonding occurs during all stages.
1

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

hope i !

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b