Answer:
0.0000159
Explanation:
Divide 15.9 by 1000000, because 1 kilometer equals 1000000 millimeters.
Answer: explained below
Explanation:
Matter can change form through physical and chemical changes, but through any of these changes, matter is conserved. The same amount of matter exists before and after the change—none is created or destroyed.
Answer:
1.533 moles Au
Explanation:
To find the moles from atoms, you just use Avogadro's number (6.02214076×10^23 mol^-1) and divide by it. Hope this helped!
Answer:
0.6 atm
Explanation:
We have a state change at a constant temperature. For isothermal transformations, Boyle proposed the equation:
P1V1 = P2V2 (Boyle's Law)
Where P1 and V1 are the pressure and the volume in the first state and P2 and V2 the pressure and the volume at the final state. So:
4x3 = 20xP2
20xP2 = 12
P2 = 0.6 atm
Answer:
The average bond energy of the sulfur-oxygen bonds in sulfur dioxide is 519.5 kJ/mol.
Explanation:
ΔH = -123 kJ
We are given with:
ΔH =
(Energies required to break bonds on reactant side) - (Energies released on formation of bonds on product side)
The average bond energy of the sulfur-oxygen bonds in sulfur dioxide is 519.5 kJ/mol.