Magnesium + oxygen 2Mg(s) + O2(9)
magnesium oxide
2Mgo (s)
1. Using the equation above, determine how many grams of oxygen are required
to burn 10.0 grams of magnesium. *
2.29
O 3.39
O
6.6 g
O 13.29
2.. Calculate the mass of magnesium oxide, in grams, formed when a 48.6 gram
piece of magnesium is burned. *
O 16.00
O24.39
O 40.39
80.69

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.)