On July 8th, I will be 8.51472x108 seconds old. How old will I be in years? (Assume 365 days in a year.) step by step

What happens to isotopes that are unstable?

Which of these is a physical property

Select the most likely product for this reaction: koh(aq) + co2(g) – ? k2co3(aq) + h2o(1) k(s) + h2(g) + o2(g) k(s) + co3(9) +h2