Answer:
A. 18
Explanation:
A neutral charged atom is an atom with 0 charge.
Anyway, first look at the periodic table and find Argon.
After you find Argon, look at its Atomic number.
Its Atomic number is 18.
And a neutral atom of Argon has 0 charge.
So we need 18 electrons for Argon to cancel out and become neutral.
Basic math:
18 +( -18) = 0
Therefore, the correct answer is A. 18
Hope it helped!
Answer:
P = 559.553 mmHg
Explanation:
Clasius-Clapeyron:
- Ln(P2/P1) = - ΔHv/R [ 1/T2 - 1/T1 ]
∴ P1 = 23.8 mmHg = 3.173 KPa
∴ T1 = 25°C ≅ 298 K
∴ ΔHv = 40.657 KJ/mol
∴ R = 8.314 E-3 KJ/K.mol
∴ T2 = 96°C ≅ 369 K
⇒ Ln P2/P1 = - (40.657 KJ/mol/8.314 E-3 KJ/K,mol) [(1/369 K) - (1/298 K) ]
⇒ Ln P2/P1 = - (4890.185 K) [ - 6.457 E-4 K-1 ]
⇒ Ln P2/P1 = 3.1575
⇒ P2/P1 = 23.511
⇒ P2 = (23.511)(3.173 KPa)
⇒ P2 = 74.601 KPa = 559.553 mmHg
Answer:
No
Explanation:
The moon has no atmosphere, because it is a giant space rock that somehow managed to land in earth's orbit and gravitational pull of force.
A. gas change, color change, and temperature change.
B. color change; one day you wore a ring that wasn't stainless steel in the shower, so the following morning it was rusted.
