The chemical equation for a reaction between kmno4 and hcl is shown. 2kmno4 + 16hcl → 2mncl2 + 5cl2 + 2kcl + 8h2o which of the following identifies the reactant that acts as a reducing agent in the reaction and explains the answer? kmno4, because the oxidation number of mn changes from +7 to +2. kmno4, because the oxidation number of k changes from +7 to +2. hcl, because the oxidation number of h changes from −1 to 0. hcl, because the oxidation number of cl changes from −1 to 0.

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.

Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming the cathode. which other model or scientific observation would have also been supported? 1. this would support dalton's postulates that proposed the atoms are indivisible because no small particles are involved. 2. this would support bohr's prediction about electrons moving in orbits having specific energy. 3. this would support bohr's prediction about electrons being randomly scattered around the nucleus in the atom. 4. this would support dalton's postulates that proposed that atoms combine in fixed whole number ratios to form compounds.

What are the coefficients to balance the following equation? ba+br2=babr2