How many milliliters of 0.188 M HClO 4 solution are needed to neutralize 50.00 mL of 0.0789 M NaOH? a) 119
b) 0.742
c) 21.0
d) 0.0477
e) 8.39x10^-3

How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins. co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)

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