(nh4)2so4 + ba(no3)2 reaction and what type of reaction is it

What must happen before a body cell can begin mitotic cell division

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.

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.