If you begin the reaction with 1.09 moles of methane (CH4), how many moles of water (H2O) will be produced?

Can someone me with 6 to 10 plz this is for masteries test.

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.)

How many neutrons does an element have if its atomic number is 50 and its mass number is 166