Describe the relationship between substrate concentration and the initial reaction rate of an enzyme-catalyzed reaction. is this a linear relationship? what happens to the initial reaction rate as substrate concentration increases?

Why are people not able to scuba dive in the deep part of the ocean

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.

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.)