You believe you have cracked a secret code that uses elemental symbols to spell words. the code uses numbers to designate the elemental symbols. each number is the sum of the atomic number and the highest principal quantum number of the highest occupied orbital of the element whose symbol is to be used. the message may be written forward or backward. decode the following messages.
questions:
part a. 5, 30, 58, 56, 99, 79, 19, 98, 9
part b. 9, 99, 30, 95, 19, 47, 79

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt

Abike ride event is 30 miles. a first aid tent is put at the 3/4 mark of the course. how many miles from the starting point is the first aid tent?