alcohols, always polar, can form hydrogen bonds with h2o molecules
cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1
carbonyl > co
ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)
amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+
addition to rna/dna affects and gene expression
phosphate -opo3 ²⁻
organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20
thiols, cross-linking stabilize the protein, and it is structure
the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.
the law of original horizontality explains: why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed. the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.