Hydrogen gas is produced when magnesium metal reacts with hydrochloric acid. In the lab, a student collects 0.002581 g of hydrogen gas over water in a eudiometer at 23°C. The atmospherie pressure is 794 mmHg. What volume (in mL) of dry hydrogen gas would be collected? "

Part of molten rock at mid-ocean ridges

What is the overall order of reaction for rate = k[no2]2 ? second order 3/2 order third order zero order none of the listed answers are correct

100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)