There are types of nuclear reaction: nuclear fusion and nuclear fission. The difference is that fusion is a combination of two elements while fission is the breaking up of the subatomic particles of an element creating a new element. The limiting element to this is Iron. Iron-26 is the most stable element. As a result, elements lighter than Fe-26 are generally fusible. This includes hydrogen and helium.
This reaction is common in the stars, most especially the Sun. The energy of the Sun comes from its abundant hydrogen composition which becomes fusible into Helium. This occurs at a temperature of 14 million Kelvin. The nuclear reaction is a not a one-way step process as shown in the picture.
B. is positive
H20 (l)--> H20 (g)
when that happens, the heat is absorbed into the liquid to change the state of the liquid to gas; therefore, in order to change to a gaseous state, heat must be a reactant. and so enthalpy is increasing
Answer:
Molarity of HCl = 0.12 M
Explanation:
Given data:
Volume of HCl = 13.0 mL
Volume of NaOH = 36.11 mL
Molarity of NaOH = 0.045 M
Molarity of HCl = ?
Solution:
Formula:
M₁V₁ = M₂V₂
M₁= Molarity of HCl
V₁ = Volume of HCl
M₂ = Molarity of NaOH
V₂ = Volume of NaOH
M₁ × 13.0 mL = 0.045 M × 36.11 mL
M₁ = 1.62 M.mL / 13.0 mL
M₁ =0.12 M
Answer:
O parallel
Explanation:
For longitudinal waves, the direction of wave motion is parallel to the direction of their propagation.
Longitudinal waves are transferred by a series of rarefaction and compressions along their path.
One important longitudinal waves are sound waves and seismic p-waves.
Transverse waves a propagated perpendicular to the direction of their displacement.