You need 2.5 moles of aluminum for an experiment. How many atoms of aluminum is this?

What is the formula mass of ethyl alcohol, C2H5OH

Which of the following methods separates a homogeneous solution by spinning the solution very fast? Evaporation and distillation Filtration Centrifuge Magnetism

Calculate the number of moles of solute present in each of the following solutions. Part A 255mL of 1.70M HNO3 (aq) Part B 45.0mg of an aqueous solution that is 1.35m NaCl.

Which of the following reactions yield an alcohol as the major organic product? Select all that apply. A. Reaction of a ketone with H2 and Pd B. Hydrogenation of an alkene C. Hydroboration-oxidation of an alkene D.

What is the smallest particle of an element that's till retains all the properties of the element?

Which of these represents a chemical change?

A chemist measures the amount of iodine solid produced during an experiment. she finds that 1.6 g of iodine solid is produced. calculate the number of moles of iodine solid produced.

Write the equilibrium constant: Pb3 (PO4) 2 (s) = 3Pb2 + (aq) + 2PO2 (aq)

How many orbitals are there in the shell with n = 4?

Using the balanced equation shown below, calculate the mass of c3h8 that must react in order to release 2.45*106 * 106 kj of heat. δhrxn = - 2219.9 kj