Answer:
Fossil fuel
Explanation:
Fossil fuels are obtained from dead and decomposed plants and animal remains left for centuries in the earth crust under pressure. These remains of organisms become covered with mud, silt and other sediments.
As the sediments pilled up under pressure, bacterial activity, heat and pressure changed these remains into natural gas and crude oil.
They are nonrenewable resources because the reserves could dry up with time as they are being used.
LiOH+HCL LiCL+H2O represents a double replacement reaction.
They take breathalyzer tests or field sobriety tests.
Answer:
- There will be 1.23 moles of helium in the balloon at STP
Explanation:
1) <u>Initial conditions of the helium gas</u>:
- V = 20.0 liter
- p = 1.50 atm
- T = 25.0 °C = 25.0 + 273.15 K = 298.15 K
2) <u>Ideal gas equation</u>:
- pV = n RT
- p, V, and T are given above
- R is the Universal constant = 0.0821 atm-liter / ( K - mol)
- n is the unknown number of moles
3) <u>Solve for n</u>:
- n = 1.50 atm × 20.0 liter / (0.0821 atm-liter /k -mol ×298.15K)
4) <u>At STP:</u>
- STP stands for standard pressure and temperature.
- The amount (number of moles) of the gas will not change because the change of pressure and temperature, so the number of moles reamain the same: 1.23 mol.
1 US cup equals to 8 fluid ounces :)