True of false:

rocks are mixtures, or aggregates, of minerals

true

false

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

Word equation for k(s) +h2o(l) yield koh (aq) + h2

At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.