A student is collecting the gas produced from the reaction of 1.5 grams of Mg with

excess HCI. When the reaction is

complete, how many moles of H2 should

have been produced?

What are the four basic classes of organic molecules how do they differ structurally and functionally

Coat color in cats is determined by genes at several different loci. at one locus on the x chromosome, one allele (x ) encodes black fur and another allele (xo) encodes orange fur. females can be black (x x ), orange (xoxo), or a mixture of orange and black called tortoiseshell (x xo). males are either black (x y) or orange (xoy). bill has a female tortoiseshell cat named patches. one night, patches escapes from bill\'s house, spends the night out, and mates with a stray male. patches later gives birth to the following kittens: one orange male, one black male, two tortoiseshell females, and one orange female. what are the genotypes of patches, the stray male, and the kittens?

Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?