Carbon, hydrogen, and oxygen from sugar molecules may combine with other elements to form other biomolecules. The picture above shows an example of this. Examine the model and choose ALL of the statements that accurately describe the formation of the new biomolecule. A) Lipids are being formed.
B) The monomers are fatty acids.
C) This is a hydrolysis reaction.
D) Proteins are being broken down.
E) This is a dehydration synthesis reaction.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

there are two significant figures.

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.