Answer:
Explanation:
Lattice energy is the energy required to separate one mole of an ionic solid compound into its components gaseous cations and anions.
Due to increase in size of the ions, the lattice energy decreases while the lattice energy increases as the charge of the ions increases.
When the size increase, the distance between the nuclei also increase leading a decrease the force of attraction between the nuclei
Answer:
For your kind information, read the question thoroughly!
The bottom is the container part and not the liquid.
I hope it will be useful.
Answer:
The value is
Explanation:
From the question we are told that
The mass of the sphere is m = 18.5 kg
The diameter is
The number of electrons is
The mass of the plastic ball is
The initial acceleration of the ball is
Generally the radius of the sphere is mathematically evaluated as
=>
=>
Generally the force between the ball and the sphere is
Generally this force can also be mathematically represented as
So
Here is the charge removed from the sphere whicn is evaluated as
substituting for e
and is the charge to be removed from the ball
So
Generally the number of electron to be removed from the ball is mathematically represented as
=>
=>
Answer:
thermal
Explanation:
sorry if you get it wrong
1: Explain how you can use Boyle’s Law to determine the new volume of
gas when its pressure is increased from 270 kPa to 540 kPa? The original
volume of gas was 1 L. Assume the temperature and number of particles are constant. What is the new volume?
Boyle's Law of gases: At constant temperature, the volume of a gas is inversely proportional to the pressure of the gas.
This is pV = constant. Then 1 L * 270 kPa = x * 540 kPa => x = 1L*270 kPa /540 kPa = 0.5 L
2: What are three common clues that a chemical change has occurred?
- Change of color
- Production of bubles
- Change of temperature
- Production of odors / smell
- Formation of precipitates (solids)
3: You have a sealed glass jar full of air. If you put it in the freezer, what happens to the gas pressure in the jar?
The pressure decreases, according to Gay-Lussac, at constant volume, the pressure and the temperaure of a gas are proportional.
Then at lower temperature (inside the freezer) the pressure in the jar will decrase.
4: Name and describe the phase change that occurs when solid carbon
dioxide (dry ice) is placed in an open container at room temperature.
This change of phase is called Sublimation. The solid passes directly to gas state, without passing by the liquid state.