I'm guessing you have to balance these.
I took a picture of my working out.
Answer to the first one = 2HCl+CaCO3=CaCl2+H20+CO2
So basically just add a big 2 in front of the first HCl
Answer to second one = 2Ni + O2 = 2NiO
So basically in this one just add a big 2 in front of both of the Ni
I don't learn chemistry yet but I see where you are right now... I think this will change in the near future because we will only have the ocean water to survive... So we purify the water... Because this will almost be all we have, we'll have no choice BUT to make money on this.... Sorry if it's wrong I don't learn chemistry yet
I am assuming that the problem ask for the pressure in
the system. To be able to calculate this, we first assume that the system acts
like an ideal gas, then we can use the ideal gas equation to find for pressure
P.
P V = n R T
where,
P = Pressure (unknown)
V = 0.17 m^3
n = moles of lng / methane
R = gas constant = 8.314 Pa m^3 / mol K
T = 200 K
We find for the moles of lng. Molar mass of methane = 16
kg / kmol
n = 55 kg / 16 kg / kmol
n = 3.44 kmol CH4 = 3440 mol
Substituting all the values to the ideal gas equation:
P = 3440 mol * (8.314 Pa m^3 / mol K) * 200 K / 0.17 m^3
P = 33,647,247 Pa
<span>P = 33.6 MPa</span>
It is impossible to reach absolute zero because the magnitude of work that is required to remove energy from a gas in order to attain the absolute zero is so high.
<h3>What is the absolute zero?</h3>
The absolute zero is the temperature at which the movement of all the gas molecules is theoretically believed to cease. At the absolute zero, gas molecules remain at fixed positions because according to the third law of thermodynamics, the entropy of a perfectly ordered system is zero.
It is impossible to reach absolute zero because the magnitude of work that is required to remove energy from a gas in order to attain the absolute zero is so high such that it is impractical to attain the absolute zero.
Learn more about absolute zero:brainly.com/question/79835
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Answer:
11
Explanation:
According to the periodic table Sodium (Na) has 11 electrons.
