The answer is I think is c
The electrically charges particles make the material electrically conductive on the atomic level. In metals, the valence electrons are responsible for conduction. More the valence electrons, more the movement of charge, more conductivity.
Answer: a meter is a meter
Explanation:
a meter is a certain lenght. it does not change when you're somehwere else
Answer:
Explanation:
To convert from molecules to moles, we must use Avogadro's Number: 6.022*10²³. This tells us the amount of particles (atoms, molecules, etc.) in 1 mole of a substance. In this case, the particles are molecules of water.
Multiply by the given number of molecules.
Flip the fraction so the molecules of water cancel.
The original measurement of atoms has 2 significant figures ( 4 and 3), so our answer must have the same. For the moles we calculated, that is the tenth place. The 4 in the hundredth place tells us to leave the 1.
There are about 7.1 moles of water.
We first consider the ideal gas equation,
PV = nRT
It is stated that the pressure and temperature are constant; moreover, R is already a constant. So, we get:
V = constant * n
This is the equation of direct proportion. Therefore, we get:
V/n = constant
V₁/n₁ = V₂/n₂
Substitute the values and solve for V₂
V₂ = (4 * 1.48) / 0.864
V₂ = 6.85
6.85 Liters of gas must be present at the end, so we need to add:
6.85 - 4 = 2.85 liters