Activation energy is (1 point)
(0 pts) the heat realeased in a reaction
(0 pts) the energy barrier between reactants and products
(0 pts) the energy given off when reactants collide
(0 pts) generally very high for reaction that takes place reapidly

An aqueous solution of hydroiodic acid is standardized by titration with a 0.186 m solution of calcium hydroxide. if 26.5 ml of base are required to neutralize 20.3 ml of the acid, what is the molarity of the hydroiodic acid solution? m hydroiodic acid

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Write the formula for the following chemicals. 7. e. trinitrogen tetraoxide a calcium phosphate f. magnesium acetate b. potassium sulfide g nickel(iii) cyanide c carbon dioxide h. silver sulfate d. cobalt(ii) chloride