Which property of argon makes it useful for potassium-argon dating?

It decays into potassium.
It is an unstable element.
It remains trapped in rock.
It is useful only for dating newer rock.

9. write the chemical equation for the following word equations. include symbols for physical states in the equation. a. solid zinc sulfide + oxygen gas -> solid zinc oxide + sulfur dioxide gas b. aqueous hydrochloric acid + aqueous barium hydroxide -> aqueous barium chloride + water

Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?

What is the mass of 0.46 mil of mgcl2