2h-7 I had that before unless I’m tripping but I did rechecked
The water reaches its boiling point and turns into water vapor. This process is a physical change. The change is substance status. And the physical change will not destroy the molecular structure. So the molecular structure will not change.
Answer:
2HCr2O7(aq) + Ca(OH)2(aq) --> 2H2O(l) + Ca(Cr2O7)2
Explanation:
A neutralization reaction produces water and a salt. Since Ca(OH)2 has two hydroxides, two water molecules are produced, which means you also need two molecules of the acid. Having two molecules of the acid also ensures that you have two dichromates on both sides.
Answer:
Energy is carried from one point to another or from one region to another by moving mass or through the action of waves.
· All waves have a source. This source transforms energy into forms that can be carried as waves.
· Waves are not material objects. Waves represent the moving energy being carried away from the source.
Waves are coordinated vibrations that transport energy. Sometimes waves require the vibration of particles in matter to move, other waves travel without any need for particle vibrations.
Explanation:
Answer:
entropy increases when a glass of water is set in the sun until the water evaporates.
Hope it will help you :)
