Answer:
a, d, f
Explanation:
ΔHrxn = ΔH(CCl4) -ΔH(CH4) = - 106.7 -(-74.8) = - 31.9 kJ/mol
Here's the balanced equation: 2NaCl+F2==>2NaF+Cl2
Answer:
The percent composition of fluorine is 65.67%
Explanation:
Percent Composition is a measure of the amount of mass an element occupies in a compound. It is measured in percentage of mass.
That is, the percentage composition is the percentage by mass of each of the elements present in a compound.
The calculation of the percentage composition of an element is made by:

In this case, the percent composition of fluorine is:

percent composition of fluorine= 65.67%
<u><em>The percent composition of fluorine is 65.67%</em></u>
<span>Buffer systems in our
body maintain the pH of blood to be at an optimum level which is at a range of
7.3-7.4. A buffer is a solution that resists changes in pH during the addition
of an acid or a base. Our blood has a number of buffer systems. Examples are
the bicarbonate buffer system and the hemoglobin buffer system.</span>
Answer:
The Himalayan mountain is formed at the convergent plate boundary.