Select the pH value you would expect for each of these solutions.

Cesium metal is frequently used in photoelectric cells because the amount of energy necessary to eject electrons from a cesium s

dybincka [34]

Answer:

Wavelength of light in (nm) = 579 nm

Explanation:

At first you find out the amount of energy needed to just eject one electron. This is given by $\frac{Energy}{Avogadro's number}$

this energy is given in question in kj/mole. This $\frac{Energy}{Avogadro's number}$ is the work function of cesium for each electron is equal to the planc'k einstein equation.

8 0

4 years ago

Why does solid substance occur less space than the same in it's gaseous form?

Angelina_Jolie [31]

Because the molecules are more closely spaced, the solid occupies less space than the same substance when it is in a gaseous state.

4 0

2 years ago

Vapor dispersion:

Contact [7]

Answer:

c. reduces the concentration of the hazardous material in the air.

Explanation:

Pollution can be defined as the physical degradation or contamination of the environment through an emission of harmful, poisonous and toxic chemical substances.

Particulate population is a form of pollution that is responsible for the degradation of the environment.

Particulate matter is also referred to as particle pollution or atmospheric aerosol particles and it can be defined as a complex microscopic mixture of liquid droplets and solid particles that are suspended in air. Other forms of particle pollution includes space debris and marine debris.

Some examples of particulate pollution are dusts, soot, dirt, smoke, etc.

Basically, various anthropogenic activities such as construction and agriculture are primary sources of particulate matter because they're capable of causing particle pollution on their own. The other sources of particle pollution is the secondary source which includes factories, cars, trucks, etc.

Vapor dispersion can be defined as a process which is typically used for removing particle pollutants from the atmosphere through the use of vapor or steam.

Hence, vapor dispersion when adopted, reduces the concentration of the hazardous material such as soot, dusts, smoke, etc., in the air.

5 0

3 years ago

Most of the minerals in the Earth’s crust are a type of what mineral? A. mica B. gem C. metal D. silicate

tigry1 [53]

It would be D. silicate

3 0

3 years ago

Determine the limiting reactant when 30.0 g of propane, C3H8, is burned with 75.0 g of oxygen.

AnnZ [28]

Answer: The limiting reagent is oxygen gas.

Explanation: