Increasing the temperature, as noted in the graph, increases the rate of this chemical reaction. what is the relationship between increased temperature and activation energy in a typical chemical reaction? a) as the kinetic energy of the substances increases, the overall activation energy also increases. b) the proportion of collisions that can overcome the activation energy for the reaction increases with temperature. c) although the average kinetic energy of the colliding substances increases, this has no influence on activation energy. d) the proportion of collisions that can overcome the activation energy for the reaction decreases as temperature increases.

Astudent is given a sample of a blue copper sulfate hydrate. he weighs the sample in a dry covered porcelain crucible and got a mass of 23.875 g for the crucible, lid, and sample. the mass of the empty crucible and lid was found earlier to be 22.652 g. he then heats the crucible to expel the water of hydration, keeping the crucible at red heat for 10 minutes with the lid slightly ajar. on colling, he finds the mass of crucible, lid, and contents to be 23.403 g. the sample was changed in the process to very light clue anhydrous cuso4. if there are again 100.0 g of hydrate, how many grams of cuso4 are in it? how many moles of cuso4? (hint: molar mass of cuso4 = 159.6 g / mole. what per cent of the hydrate is cuso4? you may convert the mass of cuso4 to moles.)

Identify the lewis acid in this balanced equation: ag+ + 2nh3 -> ag(nh3)2+a. ag+b. nh3c. ag(nh3)2+

Adirect relationship can be represented by: a curve a pie chart