Sandy enters a 5 km walk. If Sandy’s walking stride (the distance she covers in
each step) is 26.4 inches, how many steps
can she expect to take? (3281 ft = 1 km)

In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst

Which is the solubility product expression for caf2(s)?  [ca2+]/[f–]2  [ca2+][f2–]  [ca]+[f]2  [ca2+][f–]2

What is the oxidation state of each individual carbon atom in c2o42−?