Chemistry, 22.07.2019 10:31 jasmin5285
Which statement describes the phospholipid bilayer that makes up a cell membrane? a: the hydrophobic heads point into and out of the cell, while the hydrophilic tails form a layer between the heads. b: the hydrophobic tails point into and out of the cell, while the hydrophilic heads form a layer between the tails. c: the hydrophilic heads point into and out of the cell, while the hydrophobic tails form a layer between the heads. d: the hydrophilic tails point into and out of the cell, while the hydrophobic heads form a layer between the tails.
Answers: 1
Chemistry, 22.06.2019 19:20
For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)
Answers: 1
Chemistry, 23.06.2019 02:30
When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule
Answers: 1
Which statement describes the phospholipid bilayer that makes up a cell membrane? a: the hydrophob...
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