Answer:
Rock
Explanation:
Rock -
It refers to the naturally occuring mass of mineral , with a uniform chemical composition , is referred to as a rock .
In the crust of the Earth , the composition is by the igneous rocks .
<u>There are three main type of rocks , i.e. , </u>
- sedimentary rocks ,
- metamorphic rocks ,
- igneous rocks .
Hence , from the given information of the question ,
The correct term is rock.
Answer:
hydrocarbons are the answer
Answer: The partial pressure of the Kr is 320 mm Hg.
Explanation:
According to Raoult's Law , the partial pressure of each component in the solution is equal to the total pressure multiplied by its mole fraction. It is mathematically expressed as

where,
= partial pressure of component A
= mole fraction of A
= total pressure
mole fraction of Krypton = 

Thus partial pressure of the Kr is 320 mm Hg
The answer is 9. Calcium nitrate is made up
of 3 different elements that equal 9 atoms.