A substance decomposes with a rate constant of 9.05 x 10^-4 s^-1. How long does it take for 10.5% of the substance to decompose?

18. use the activity series to predict whether the following synthesis reaction will occur. write the chemical equations for the reaction if it's predicted to occur. (s) + o2(g) -> *note: it is possible.*

After cloud droplets form, what must happen to them for precipitation to occur?

Drug abuse will not lead to physical and psychological dependence. true or false ?