Be sure to answer all parts. An environmental chemist sampling industrial exhaust gases from a coal-burning plant collects a CO2−SO2−H2O mixture in a 21.0−L steel tank until the pressure reaches 851.0 torr at 43.0°C. (a) How many moles of gas are collected?

If a 60-g object has a volume of 30 cm3, what is its density? 2 g/cm3 0.5 cm3/g 1800 g * cm3 none of the above

Which statement describes how phase changes can be diagrammed as a substance is heated? the phase is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the phase is on the x-axis. the time is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the time is on the x-axis.

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work