PHYSICAL PROPERTY...................
Answer:
1 mole
Explanation:
The mole (mol) is the amount of a substance that contains the same number of entities as there are atoms in exactly 12 g of carbon-12. One mole (1 mol) contains 6.022x1023 entities (to four significant figures).
Answer:
The age of the fossil be 
.
Explanation:
Formula used :
where,
= initial mass of isotope C-14 = x
N = mass of the parent isotope left after the time, (t) = 70.0% of x=0.07x
= half life of the isotope C-14 = 5730 years
= rate constant
Let the age of the fossil be t.
Now put all the given values in this formula, we get t :
The age of the fossil be .
The Solar System[b] is the gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly.[c] Of the objects that orbit the Sun directly, the largest are the eight planets,[d] with the remainder being smaller objects, the dwarf planets and small Solar System bodies. Of the objects that orbit the Sun indirectly—the natural satellites—two are larger than the smallest planet, Mercury.[e]
Mixture between a liquid and particles of a solid
