When a 500. gram sample of water at 19.0oC absorbs 8.40 kiloJoules of heat, the temperature of the water will change to?

A) 23.0oC B) 19.0oC

C) 15.0oC D) 4.00oC

Where are the heavy metals located on the periodic table

Observe the reaction between N2 and H2 to make NH3. N2 (g) + H2 (g) → NH3 (g) If 2 molecules of N2 react with 3 molecules of H2, determine the number of molecules of NH3 that could form from each starting material.

How ions are formed for ionic bonds?

A nickel is about 2 millimeters thick, or 2/1,000 of a meter how many nanometers is this

How do you tell if elements have similar chemical properties periodic table?

What does LeChatelier's principal mean

How many milliliters of a 0.7% stock solution are required to make 2 l of 0.2% solution? how many ml of solvent will be required to carry out the dilution?

What percentage of the naphthalene molecules emitted a photon?

In an endothermic reaction, heat is absorbed from the surroundings. How does this affect entropy? A. The particles in the surroundings move slower and have decreased entropy. B.

The temperature of a sample of liquid water changes from 50°C to 30°C. Which statement best explains the change that must happen at the molecular level? A. The molecules move more quickly and their average kinetic energy increases. B.