How many carbon atoms are there in a 17.2-kg sample of carbon?

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.