Hydrazine (h2nnh2), hydrogen peroxide (hooh), and water (h2o) all have exceptionally high surface tensions compared with other substances of comparable molecular weights. a. draw the lewis structures of these three compounds. b. what structural property do these substances have in common, and how might that account for the high surface tensions?
scientists can reflect on the elements that are already there and predict the next ones
the reaction is exothermic.
a net release of energy from the reacting
substances into the surroundings makes
this an exothermic reaction.
the equation shows that 891 kj of energy
are released as a product.
the graph shows that the reactants have
greater potential energy than the products.
this means the difference in energy is
released to the surroundings.
the end point of titration or the point of neutralization.
a quantitative analysis which is used to determine the concentration of an acid or a base by exactly neutralizing it with a standard solution of base or acid having known concentration is the acid base titration.
this reaction produces a salt and water with a trace of indicator at the end point of titration which is also called the point of neutralization.