How many grams of oxygen are in a sample of 0.0625 mol O2? OA) 2.00 g
OB) 2.88 g
C) 1.00 g
OD) 32.0 g

In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next