Order reactions

[deniise_garciia]

How do you know if a reaction is zeroth, first or second order if it is not specified?

[monikac4k]

Usually, some sort of experimental data will be given to us so that we can figure out what order the reactants are.

[Gracie Ge 2E]

you won't. unless you're given other info ([A] change and rate change or actual rate laws)

[Jocelyne Milke 1G]

You can look at the units for k if it is given or the rate law

[Letizia Ye 4F]

You can infer from either the units of the rate constant, or the experimental data will tell you.