Answer:
1.54 atm
Explanation:
By Dalton's Law Of partial pressure,
Total Pressure = Sum of all partial pressures
So,P= P1 + P2 + P3
Therefore, P=0.23+0.42+0.89
=1.54 atm
45 molecules of chlorine gas (Cl₂) are needed to react with 30 atoms of aluminum (Al)
The balanced equation for the reaction is given below:
2Al + 3Cl₂ —> 2AlCl₃
From the balanced equation above,
2 atoms of Al required 3 molecules of Cl₂.
With the above information, we can determine the number of molecules of Cl₂ needed to react with 30 atoms of Al. This can be obtained as follow:
From the balanced equation above,
2 atoms of Al required 3 molecules of Cl₂.
Therefore,
30 atoms of Al will require =
= 45 molecules of Cl₂.
Thus, 45 molecules of chlorine gas (Cl₂) are needed to react with 30 atoms of aluminum (Al)
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the answer to this is D) They are all the same size
Answer:
2,452.12 L of fuel the jet consumes on a 1150 km mission.
Explanation:
Speed of the jet = 1300 km/h
1 hour = 60 minutes

Rate at which jet consumes fuel = 46.2 L/min
Distance covered by jet by consuming 1 liter fuel or mileage = R
R = 
The amount of fuel the jet consumes on a 1150 km mission will = V
Amount of fuel = 

2,452.12 L of fuel the jet consumes on a 1150 km mission.