How did the grandmother show her gratitude towards her granddaughter answer this and in end please tell me how to mark answer as brainliest I will mark your answers as brainliest

they are made of gases.

they have a spherical shape.

they make energy through fusion.

fe 55.85 g/mol and h2o 18.02 g/mol.

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.