Answer:
127K
Explanation:
Recall that the density of a gas (ρ) is related to the molar mass of the gas (M), the ideal gas constant (R), and the temperature in Kelvin (T). This relationship is described by the equation below.
ρ=PMRT
We are asked to solve for the temperature at which neon gas, Ne(g), will have a density of ρ=1.45gL. Rearrange the equation above to solve for T and substitute the given values into the equation.
ρT=PMRT=PMRρ=(0.750atm)(20.180gmol)(0.08206L atmmol K)(1.45gL)=127.2K
Therefore, after rounding to three significant figures, we find that the temperature is approximately 127K.
Carbon and iron alloys are called steel.
Answer:
I would say A
Explanation:
our ancestors are the people that lived long before us
Well the width is 0.20 meters. Since there are a hundred centimeters in a meter, we just have to move the decimal point two times to the right to get a 20 centimeter width.
The good ozone protects us from the UV/ harmful radiations whereas bad ozone is an air pollutant.
Explanation:
- There are two types of ozone layer found in the earth's atmosphere extending from troposphere to stratosphere. They are good ozone and bad ozone.
- Bad ozone as mentioned earlier it is an air pollutant and found in the ground level of earth, most accurately the troposphere. Bad ozone is formed in the ground level of earth's atmosphere by the reaction between nitrogen oxides and organic compounds which are volatile
- The Good ozone is found in the stratosphere layer of the earth's atmosphere. They protect us from harmful radiations. Good ozone layer in the stratosphere of the atmosphere is being destroyed by hydrocarbons, CFCs, and human intervention
