Answer:
C
Explanation:
The mass of the empirical formula is
C = 12
2H = 2*1 = 2
O = 1 * 16=16
Total = 30
The molecular mass is 180/30 = 6
The means you multiply the empirical formula by 6
(CH2O)_6
C6H12O6
The answer is C
<span>You did not include the reaction.
This reaction meets the statement:
Zn + 2 HCl ---> ZnCl2 + H2(g)
So, I am going to show you how to solve the problem ,from that reaction.
Data:
Zn =?
V = 150 ml
T = 293 k
I also have to assume atmospheric pressure, p = 1 atm
1) Determine the number of moles of H2 gas, using ideal gas law.
pV = nRT => n = pV / RT = 1 atm * 0,150 liter / (0,0821 atm*liter/K*mol * 293 k)
=> n = 0,0062 mol H2
2) State the molar ratios from the reaction:
1 mol Zn : 1 mol H2
3) State the proportion with 0,0062 mol H2
1 mol Zn / 1 mol H2 = x mol Zn / 0,0062 mol H2 =>
x = 0,0062 mol Zn
4) Determine the mass of Zn using the atomic mass of Zn: 65.39 g/mol
=> mass of Zn = 0,0062 mol * 65,39 g / mol = 0,41 g
Answer: 0,41 g
</span>
Newton's first law of motion predicts the behavior of objects for which all existing forces are balanced. The first law - sometimes referred to as the law of inertia - states that if the forces acting upon an object are balanced, then the acceleration of that object will be 0 m/s/s. Objects at equilibrium (the condition in which all forces balance) will not accelerate. According to Newton, an object will only accelerate if there is a net or unbalanced force acting upon it. The presence of an unbalanced force will accelerate an object - changing its speed, its direction, or both its speed and direction.
Answer: 1. HYDROCARBONS? 2. ALKANES?
i'm not exactly AMAZING at this but i did some research and this is what i think it is i'm also not in this grade but i tried.
Answer:
Pressure or Average Kinetic Energy
Explanation:
When dealing with sealed containers filled with gas, there are many variables to consider. Namely: pressure, temperature, volume, number of molecules present.
However, this question can be solved easily, without worrying too much about the other variables. Usually the case is that if there is a difference in pressure, there will be a difference in temperature, so the answer could be that both pressures must be equal.
Another way we could look at it is that the Average Kinetic Energies between the two containers have to be equal, and this will then lead to the temperatures being equal without worrying about other variables.
