In the UNBALANCED chemical reaction for the combustion of acetylene (used in welding torches), determine at standard temperature and pressure, how many liters of H2O gas are produced if 12 liters of Oxygen gas are completely consumed?

__C2H2 + __O2 —> __CO2 + __H2O

(Please help! Random answers for points will be reported)

This drawing shows a human body system. what is the primary function of this body system?

What are the first three quantum numbers for the electrons located in subshell 2s?

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.