Examine the following equations.

A. 90234Th→91234Pa+-10e+γ

B. 2760∗Co→2760Co+γ

C. 90234Th→88230Ra+24He

D. 614C→714N+-10e

In which equation (s) is gamma decay represented?

D

A

A and D

C and D

C

A and B

B

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How many moles of zinc are in 4.70 kg of zinc?

Which can be changed when balancing a chemical equation, the coefficient or the subscripts? Why?

How does water's dissolving power support life on Earth?

Zn is less active than mg write the equations decribing what occurs when you mix, zn with o. 5 m magnesium chloride, mgcl2 if no reaction occurs write n. r

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