Answer: A) polar molecule
Explanation: Polar molecules are molecules which contain atoms of different electronegativities.
Non polar molecules are molecules which contains atoms of same electronegativities.
Water is a polar covalent molecule formed by unequal sharing of electrons. Oxygen being more electronegative tend to keep the electron pair towards itself thus generating a partial negative charge. The hydrogen acquire a partial positive charge thus resulting in a polar molecule.
The bent shape is due to repulsion between lone pairs and bond pairs of electrons.
It is approximately 0. It could be barley higher or lower for both. You have to take the altitude into consideration.
If i am not mistake u can use -log[concentration of oh-] to find it
ie -log[6.4*10^-10]=9.19
The first law<span>, also known as </span>Law<span> of Conservation of </span>Energy<span>, states that </span>energy <span>cannot be created or destroyed in an isolated system.</span><span>
So answer 1</span>