How much gold (in percent) is present in 18 carat gold peice of jewelry? an 18 carat piece piece of gold contains 18 parts gold in 24 parts of the alloy

Which statement is true about ionic compounds?

You have 125g of a certain seasoning and are told that it contains 76.0 g of salt what is the percentage of salt by mass in this seasoning

As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.