Print Calculator -d Periodic Table Question 19 of 30 Sapling Learning A particular reactant decomposes with a half-life of 105 s when its initial concentration is 0.310 M The same reactant decomposes with a half-life of 215 s when its initial concentration is 0.151 M. Determine the reaction order. What is the value and unit of the rate constant for this reaction? Number Select answer O Previous e, Check Answer 0 Next -I Ext åâ¡ F3 F4 9 3 4 5