GivenL C2H2 + 5O2 > 4 CO2 + 2H2O If 9.5 L of CO2 are produced, how many liters of O2 will be needed for this reaction? Show work

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?

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

How do you lengthen a pattern piece? (family and consumer science, sewing)