Answer:
2. A
3.B
4.B
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Explanation:
An ion with a posive charge ia called a cation
An ion with a negative charge is called an anion
Uranium is the basic element found in abundance on Earth.
Nuclear fission occurs when one atom splits into two, creating energy. Spontaneous fission occurs all the time.
Uranium undergoes spontaneous fission at a very slow rate, and emits radiation. <span>Uranium-235 (U-235) is only found in about 0.7 percent of uranium found naturally, but it is well-suited for producing nuclear power. </span>
This is because it decays naturally by a process known as alpha radiation. This means that it releases an alpha particle (two neutrons and two protons connected together).
Another reason that U-235 is ideal for producing nuclear power is that unlike most materials, U-235 can undergo induced fission. When a free neutron collides with a U-235 nucleus, the nucleus will usually capture the neutron and split extremely quickly. The splitting of a single U-235 atom can release roughly 200 MeV (million electron volts).
Answer:
to calculate the molarity of the said sucrose,
firstly calculate the moles
which is = Molecular weight of C12H22O11 = 342g/mol
then
moles = 139/342
= 0.41 moles
to calculate Molarity now
Molarity= moles of the solute/volume of solution in liter
=0.41/2.60
=0.158M
Explanation:
Answer:
Pupil is the blackness in the middle, which is technically a "hole" in your eye which light goes through. The iris is the part that has color.
Explanation:
When someone asks you "what color are your eyes," they really mean "what color are your irises"
