The alpha decay of iridium-174

A mole of Big Macs stacked would reach from the earth to the moon and back how many times?

Calculate the mass defect for the isotope thorium-234

Which of the following places the elements in the correct order of increasing first ionization energy? F, O, N Si, P, S Be, Mg, Ca Li, Na, K

If the ΔG value of a reaction is negative, what is true of the ΔG value of the reverse reaction? A. ΔG > 0 B. ΔG < 0 C. ΔG = 0 D. ΔG fluctuates

What waves disturb matter?

14. What steps should you take to keep parents and the public from viewing your personal information on social networks?

Match the factors which affect the rate of dissolving/dissociation/diffusion.

How would the equilibrium of an exothermic reaction at 25°c be affected if the temperature of the system were reduced? (hint: apply le chatelier's principle) ?

Which is the most practical argument for the continued funding of space exploration? a) Space exploration will one day show whether life exists on other planets in star systems similar to ours.

33 protons 36 electrons 45 neutrons