Answer:
0.0957 g
Explanation:
Half life is the time required by the substance to decay to half of its initial mass. Most often exponential decays of radioactive substances are explained by half life. Half life remains constant throughout the life of decay.
It is given as;
<em> N</em>(t) = N₀ (1/2)^t/t1/2
Where;
<em>N</em>(t) = Amount remaining after certain time
N₀ = The starting initial amount
t1/2 = Half life of given substance
Putting values,
<em> N</em>(t) = 98 × (1/2)^215/21.5
<em> N</em>(t) = 0.0957 g
Answer:
160 g.
Explanation:
The balanced equation is
4Fe + 3O2 ---> 2Fe2O3.
4 * 56 g of Fe reacts with 6 * 16 g of O2 to give 2 * 160 g Fe2O3.
224 g Fe reacts with 96g of O2 to give 320 g Fe2O3.
So 48 g O2 + 224 g Fe produces 320 * 1/2 = 160 g Fe2O3.
I wrote it out as it was easier to visualise that way, youll need to tap to see the full pic. feel free to comment if u have qns :)
Smooth seed: SS
Wrinkled seed: ss
set up a punnit square. Offspring results as Ss, which is smooth seed.
Answer:
Whereas solar energy makes use of the sun to generate energy, geothermal energy makes use of the heat that is trapped deep in the center of the earth. The magma buried deep down of our soil is as hot as the sun’s surface, and some of that heat manages to escape outward. When that happens, we can harness that said heat for energy.
Explanation:
