What causes water molecules to have the shape they have, according to vsepr theory? a. ionic attraction and repulsion b. the unusual location of the free electrons c. repulsive forces between specific electrons d. interaction between the fixed orbitals of the unshared pairs of oxygen

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How does the motion of particles in a gas change as the gas cools

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.