If a fossil sample originally contained 5 grams of carbon-14 and the half-life of carbon-14 is 5,700 years. after 11,400 years how many grams of carbon-14 would remain?

What is the number of atoms in 3.54 mol s

Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.

What does the symbol (–hfus) indicate in a phase change?