Most of the light passes through glass but none of the light passes through metal.
Answer:
27.2atm
Explanation:
Data obtained from the question include:
V1 (initial volume) = 27.2mL
P1 (initial Pressure) = 1atm
V2 (final volume) = 1mL
P2 (final pressure) =?
Since the temperature is constant, the gas is obeying Boyle's law.
Mathematically, Boyle's law is expressed as:
P1V1 = P2V2
1 x 27.2 = P2 x 1
P2 = 27.2atm
The final pressure is 27.2atm.
Therefore, the pressure needed to compress the gas is 27.2atm
Answer:
4.938×10^24 molecules
Explanation:
a mole is 6.023×10^23
(8.2)×(6.023×10^23)=4.938×10^24
Magnesium chloride is an example of an ionic compound which is a compound composed of ?
Magnesium chloride is a compound which is composed of positive and negative ions. I hope this helps you :)
Answer:
orbit
Explanation:
Though electrons can be represented simply as circling the nucleus in rings, in reality, electrons move along paths that are much more complicated. These paths are called atomic orbitals, or subshells. ... Each orbital can hold only two electrons. Electrons that occur together in an orbital are called an electron pair.
hope it helps !