He proposed that energy levels of electrons are discrete and that the electrons revolve in stable orbits around the atomic nucleus but can jump from one energy level (or orbit) to another.
Answer:
Water's high heat of vaporization allows dogs to cool themselves by panting.
Explanation:
Vaporization or Evaporation is the process in which the substance is converted into gas (vapors). This is an endothermic reaction and requires energy to be carried out. In dogs this phenomenon is being carried out in order to cool the body.
As the water molecules are evaporated it results in the removal of highly energetic molecules leaving a low energy molecules behind. Hence, cooling is achieved.
Answer:
K: +1
Br: +7
O: -2
Explanation:
O is always -2
K is in group one, so that is its charge
-8+1 is -7, so we flip the sign and that becomes Br
The reason why we flip it is to get a net balance of 0
Yes, it is 80%. Hope this helps!
Answer: 1. No, I don't think so. 2. Weight is the force of gravity, which is different from mass. 3. m2 is a unit of distance. 4. 30 x 20 x 5 = 3000 cm3 = 3 L
Explanation: