A student shook the reaction vessel too vigorously, so that some liquid was splashed up into the flexible tubing. What effect would this have on the determination of the mass of O2 gas generated?

Word equation for k+ h2o yield koh + h2

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?