Describe a sequence of reactions by which trans-pent-2-ene can be straightforwardly prepared from propyne. List only the reactants.

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons

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.

Sand is more likely than shale to preserve fossils. true false