Carlos goes on a field trip to a local aquarium and learns that sea water contains various types of salt compounds. he also learns that most of the salt compounds in sea water are sodium chloride (nacl). carlos then reviews the periodic table, as shown. which elements would bond to form a salt compound most like sodium chloride? a calcium (ca), sulfur (s), oxygen (o), hydrogen (h) b potassium (k), fluorine (f) c magnesium (mg), bromine (br) d calcium (ca), carbon (c), oxygen (o)

Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.

Compare the equilibrium constants for the systems shown in the table. which favors products the most? which favors products the least? rank these systems in order from most to least in terms of favoring products rather than reactants. d > b > a > c c > a > b > d b > c > d > a a > d > c > b

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.