Answer:
N₂
Explanation:
Using ideal gas law, you can find moles of the gas:
PV = nRT
PV / RT = n
<em>Where P is pressure (2.00atm); V is volume (4.0L), n are moles of gas; R is gas constant (0.082atmL/molK); and T is absolute temperature (30.0°C +273.15 = 303.15K)</em>
Replacing:
2.00atm×4.0L / 0.082atmL/molK×303.15K = n
<em>0.322 moles of gas = n</em>
The difference in mass is equal to mass of the gas. Knowing both moles and mass of the gas, molecular mass of the gas is:
9.1g / 0.322mol = <em>28.3g/mol</em>
As the gass is a diatomic gas, each atom weights 28.3/ 2 = <em>14.1g/mol </em>and this is the mass of nitrogen atom. Thus, the diatomic gas is<em> N₂</em>
The charge of the nucleus in an Oxygen atom is +8
Answer:
C. Fe will stay positive and increase in magnitude.
Explanation:
Coulomb's law states that the force of attraction of repulsion between two charged particles is directly proportional to the magnitude of their charges and inversely proportional to the square of the distance of separation between them.
This means that if the size of the charges are large, the force acting on them will be large as well. Also if the distance between the two charges increases the force decreases. However, the force increases when the distance of separation decreases.
Like charges repel, therefore, two negative charges brought together will repel each other, and the distance between the two charges decreases, the force will increase in magnitude. Forces of repulsion are considered positive, therefore, the force, Fe, will stay positive and increase in magnitude.
<span>Increasing the surface area helps dissolve more flavoring</span>