Zn + (
)HCl → (
)ZnCl2 + (
)H2

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?

Acompound has the molecular formula c3h8. which class of organic compounds does it belong to?

The biosphere of the earth is made up of . a. inorganic b. organic