Determine the mole fraction of the solute if you have 3.4 grams KCl in 8.1 grams H2O

A) 0.092

B) 0.420

C) 0.101

D) 0.63

How many liters of solution can be produced from 2.5 moles of solute if a 2.0 M solution is needed? 5.0 L 4.5 L 1.25 L 1.0 L

Identify the balanced single displacement reaction. CuCl2 + Fe ⟶ 2Cu + FeCI2 PbCl4 + 2Ca (OH) 2 ⟶ 2CaCl2 + Pb (OH) 4 CuCl2 + Fe ⟶ Cu + FeCI2 PbCl4 + 2Ca (OH) 2 ⟶ 2CaCl2 + 4Pb (OH)

Cobalt-60 is a radioactive isotope used to treat cancers of the brain and other tissues. A gamma ray emitted by an atom of this isotope has an energy of 0.700 MeV (million electron volts; 1 eV = 1.602 * 10-19 J).

How would sand get packed down in nature explain

A importância das plantas para os humanos

Identify the spectator ions in the following complete ionic equation. 2k (aq) s2 - (aq) pb2 (aq) 2no-3 (aq) →pbs (s) 2k (aq) 2no-3 (aq) express your answers as ions separated by a comma.

4. A bird left its post and flew in a triangular path. It flew 21 yards south, 72 yards east and 75 yards diagonally to end back at the post. Is it a right triangle?

Condension occurs in the inside of your windows in Winters, why?

How can you use Hess's law to determine a reaction's enthalpy?

7. How much energy in KJ is released when 15.0 g of steam at 100.0 degrees Celsius is condensed and then frozen to ice at 0.0 degrees Celsius?