Answer:
The answer is D.
Explanation:
When bases react with water, it will form OH- ions in the solution.
Answer:
C: Solutions W and Y have greater solubility than solutions X and Z.
Explanation:
Temperature and pressure affect the solubility of a solution as follows:
- the higher the pressure, the greater the solubility (because more pressure means more collisions between the molecules, so this improves the solubility)
- the higher the temperature, the greater the solubility (because higher temperature means higher kinetic energy of the molecules, so more collisions, and so this improves the solubility)
Therefore, considering these two factors, the solutions with greater solubility must be W (which has high pressure) and Y (which has high temperature).
I believe the answer is stored energy.
No, speed is not a vector. it is scalar.
because it doesn't need direction but need magnitude.
In solids, particles or atom are very closely arranged compared to gasses. When these particles are arranged in such proximity, vibrations from sound are very easily transmitted from one particle to another in the solid. Hence, the sound vibrations can travel through the solid medium more quickly than through a gas medium.
Speed of sound also depends on its frequency and the wavelength.
