Answer:
7.874 g/cm³ is the density
The amount of kinetic energu has depens upon an object's speed and its mass.
So its I and IV.
The correct answer is B.
Hope it helps!
#MissionExam001
<span>1. Make an Observation. Scientists are naturally curious about the world. ...
2. Form a Question. After making an interesting observation, a scientific mind itches to find out more about it. ...
3. Form a Hypothesis. ...
4. Conduct an Experiment. ...
<span>5. Analyse the Data and Draw a Conclusion.</span></span>
Answer:
We should fill the acetylene tank to a pressure of 100 atm
Explanation:
Step 1: Data given
Volume tank 1 = 7.00 L
Tank 1 is filled with oxygen and has a pressure of 125 atm
Volume tank 2 = 3.50 L
Step 2: The balanced equation
2 C2H2 + 5 O2 → 4 CO2 + 2 H2O
Step 3: Calculate the pressure of acetylene
p(oxygen) * V(Oxygen) = n(Oxygen) * R * T
p(Acetylene) * V(Acetylene) = n(Acetylene) * R * T
We can assume both tanks are at the same temperature, so we can write this as followed:
p(Oxygen)* V(Oxygen) / p(Acetylene)*V(Acetylene) = n(Oxygen) / n(Acetylene)
⇒with n(Oxygen) / n(Acetylene) = 5/2
⇒with p(Oxygen) = 125atm
⇒V(Oxygen) =7L
⇒V(Acetylene) = 3.5L
⇒ this gives us: (125 * 7) / (P(Acetylene) * 3.5) = 5/2
p(Acetylene) = 100 atm
We should fill the acetylene tank to a pressure of 100 atm
Answer:
=KSO4+Na2(NO3)2
Explanation:
the answer is true using this chemical equation balancer
