Given the following equation: C2H60 + 302 + 3H2O + 2CO2 If 2.0 moles of CO2 were produced, how many moles of O2 reacted?

What are transitions between a liquid and a solid called? identify which way they are transitioning

What substance has a mass of 9.5g and volume of 2.1cm^3

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.)