Please help me it's just one question! A solution has a [H3O+] of 1 × 10−5 M. What is the [OH−] of the solution? (4 points)

9 M
14 M
1 × 10−9 M
1 × 10−14 M

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.)

What is the importance of interlocking the fingers and rubbing while washing hands? the palms are the dirtiest parts of the hands. the spaces between the fingers get washed. the backs of the hands get washed. the fingernails are the dirtiest parts of the hands

372 ml is the volume of aluminum, density is 2.70 g/ml what is the mass in grams