Answer: D is right
Explanation: One mole contains 6.0225 ·10^23 molecules
Despite of the substance
"Chemical Energy" <span>in gasoline is transformed into mechanical energy and a motorcycle engine
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The partial pressure of 0.50 Ne gas is 214.71 torr
calculation
the partial pressure of Ne = moles of Ne/total moles x final pressure
find the total moles of the air mixture
that is moles of Ne + moles of K= 0.50 + 1.20 = 1.70 moles
The partial pressure is therefore = 0.50 /1.70 x 730 = 214.71 torr
Explanation:
Take shelter in a hard wall building
Close doors and windows cut off ventilation
Explanation:
The boiling point of liquid nitrogen, liquid argon, and liquid oxygen are -196°C, -186°C, and -183°C respectively. So, the correct order is nitrogen, argon, oxygen.