The answer is distance force
They are hard solid with a crystal lattice structure... with high melting points
A calorimeter contains 500 g of water at 25°C.....
the temperature of the water inside the calorimeter is 39.4°C.....
The specific heat of water is 4.18 J/g-°C.
energy needed to heat the water = specific heat * mass * temp difference
= 4.18 J/g-°C * 500 g * (39.4°C - 25°C)
= 4.18*500*14.4
= 30096J
or approx. 30kJ
Answer:
Option D
Explanation:
For the first statement, the order is:
=> Co < Fe < Zn < Al
For the second statement it is,
=> Ni < Co < Fe
So, combining the order becomes:
=> Ni < Co < Fe < Zn < Al
King Tut's reign came to an end at 3350 years ago
<h3>Further explanation</h3>
Carbon-14 is a radioactive isotope that can decay. This isotope can be used to determine how long ago an organism died by knowing the ratio from 12C to 14C
Can be formulated
Or we can use :
The half-life of C-14, 5730 years, so the decay constant :
Assume the initial C-14 activity was 13.6 disintegrations/min/g of C
