<span>the average atomic mass of this element is 39.95 u</span>
It's D reflection. I found the answer on quizlet.
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Answer:
0.02moles
Explanation:
To answer this question, the general gas law equation is used. The General gas law is:
Pv = nRT
Where; P = standard atmospheric pressure (1 atm)
V = volume (L)
n = number of moles
R = Gas law constant
T = Temperature
For this question; volume = 1.00L, atmospheric pressure (P) = 1 atm, R = 0.0821 L-atm / mol K, T = 600K, n = ?
Therefore; Pv = nRT
n = PV/RT
n = 1 × 1/ 0.0821 × 600
n = 1/49.26
n = 0.0203moles
Hence, there are 0.02 moles of gas.
The ball slowed down faster than the floor because the carpet has more friction than the floor. The carpet isn’t smooth but the floor is.
Elements that belong to the same group in the periodic table will have similar chemical properties. This occurs because same group elements have the same number of electrons in its outer shell. Molybdenum will have the most properties in common with the element Chromium as they are both in the same group on the periodic table.