Pros it will sustain our daily needs and will never run out
<span>Yellow
bromothymol blue is an indicator solution that is yellow in color for solutions with a pH of 6.0 or lower and blue in solutions with a pH of 7.6 or higher. Since citric acid is an acid, the pH was lower than 6.0 and the solution turned yellow. Pure citric acid has a pH of 2.2.</span>
(a) The molecular shapes of cis and Trans forms of N2F2 are-
b) There is EN difference between N atom and F atom. Hence the molecule will have a bond dipole.
In Cis form two fluorine atoms are on the same side of N N bond. Hence, bond moment in N2F2 cis form) do not cancel each other. Thus the cis form is polar.
In the trans form two fluorine atoms are on the opposite side of N-N bond. Bond moment of NF cancels each other.
Thus: trans N2F2 is non polar molecule.
A temperature change in a reaction indicates a “( physical change)”
The symbol for iron is Fe. Iron is an element with an atomic number of 26 and belongs to the group of metals in the first transition series. It is the most common and known element in the Earth's crust. It is very abundant in rocky planets which includes the Earth.