Which of the following nonmetals forms a gas commonly found in our atmosphere? rn, cl, i,or n

An experiment is conducted to see if cats preferred skim milk or 2% milk. a cup of skim milkwas put out for 5 kittens and then measured how much the kittens drank over the course of aday. following a cup of 2% milk was purout for the skittens and then masured how much thekittens drank over the course of a day. the same kittens were used and the milk was served atthe same temperature. it was discovered that the cats liked the 2% milk more than the skimmilk. what is the dependent variable in this experiment?

How many energy levels contain electrons in an atom of zirconium (zr)?

If volume remains the same while the mass of a substance the density of the substance