Answer:
Explanation:
Both calcium bromide and sodium bromide are ionic in nature so they will generate ions when dissolved in water .
CaBr₂ = Ca⁺² + 2Br⁻¹
NaBr = Na⁺ + Br⁻
Calcium bromide will generate greater number of ions per molecule according to chemical equation given above .
Benzoic acid ionizes but partially . Suger is a purely covalent compound so it does not generate ions at all .
In view of statement written above , the compounds can be arranged as follows according to conductivity from most to least conductive .
calcium bromide > sodium bromide > benzoic acid > sugar .
I would go with radioactivity is controlled radiation from a nucleus
Answer:
pretty sure u did it right??
Answer:
B. The time during which a collision between two molecules occurs is negligibly short compared to the time between collisions
Explanation:
Kinetic molecular theory postulates:-
- The gas is composed of small molecules are they are in continuous random motion and having elastic collisions with one another and also with the walls of the container.
- The molecules of the gas does not exert any kind of repulsive or attractive forces on each other and they their size is negligible as compared to the difference between them.
- Pressure exerted by the molecules of the gas results from the collisions which is happening between the molecules of the gas and the walls of the container.
- Average kinetic energy of molecules of the gas is directly proportional to absolute temperature.
Hence, The correct option is:- <u>B. The time during which a collision between two molecules occurs is negligibly short compared to the time between collisions. This is not an important postulate of the kinetic molecular theory.</u>
The moon is what makes currents so if there was no moon there would be no current in our oceans. The way it makes currents is from the gravitational pull.
Brainliest? :)
