What is the density of a substance that has a mass of 55.4 g and a volume of 10 cm3? A. 0.554 g/cm B. 5 kg/ C. 5.54 g/cm D. 554 g/cm? please need answer asap

Aballoon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon? a balloon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon?

Naoki's bicycle has a mass of 10 kg. if naoki sits on her bicycle and starts pedaling with a force of 168 n, causing an acceleration of 2.8 m/s2, what is naoki's mass?

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt