What is the isotope with 50 protons, 68 neutrons, and 50 electrons?

Consider the formation of the three solutionsshown in the table. Type of Interaction Strength of Interaction Solution A Solution B Solution Csolute-solute weak weak strongsolvent-solvent weak strong strongsolute-solvent strong strong weaka.

What determines the amount of chemical energy something has

Scientific method for medal

The soil of an agricultural field is too basic what can we do to correct it

Which of the following is true about a change from a solid to a liquid? The particles speed up. The particles slow down. The particles remain at the same energy level. The particles get closer together.

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?