An application of the half life of which isotope can be used to determine age of organic material?

carbon-14

carbon-12

carbon-13

carbon-10

What is the mass of 2.80 grams of H2O

If Na2SO4 were to dissolve in water, how many ions per molecule would be formed?

What is the mass in grams of 3.56*10^25 molecules of benzene

when it comes to mass over volume equals density what do I do to get the density

Places rich in limestone and gypsum have hard water. Why?

Type of ion formed by group 2A elements

Identify each energy exchange as heat or work. Drag the appropriate items to their respective bins. melted wax

23 Which term identifies a type of organic reaction? (1) deposition (3) esterification (2) distillation (4) sublimation

several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear is white. What process led to to this difference in fur color.

What will be the outcome of putting litmus paper into bleach? a. red paper turns blue, blue paper turns red b. red paper does not change, blue paper turns red c. red paper turns blue, blue paper does not change d.